I think it's great you're periodizing your training, but not so great with your logic behind the load.
You need to approach your microcycles with a larger gradient of volume, and load appropriately for all three disciplines. Then, provide a greater recovery.
In other words- why did you come up with 80,90,100? If you're going to use a 3:1 build meso, remember that the volume of your first microcycle should be close to your current "regular" volume, micro 2 and 3 would be (for example) 115 and 130% of micro 1, and micro 4 may be as low as 50-60% of week 1.
This time of year, unless you've got early season races to peak for, should focus on the sport-specific VO2 work and foundational volume (although this is often debated- so keep in mind that's the approach I use with myself and my athletes) and gradually shift to technique, intensity, and decrease volume.
So while you can periodize and assign a percent to the volume, you should also periodize/% the intensity- all of this is dependent on your end goal, or "specific" outcome.
With sport specific adaptations, you can't mix apples and oranges (or go up in volume in one, and down in another) unless you're giving a larger focus to one of the three or two of the three disciplines.
But, without knowning more specifics about your total weekly durations (not what you plan, but what you actually do), and when your specific goal race is (by your picture, I'm guessing a Canada or Wis IM timeframe???), it's difficult to give better advice.
Now, if this muddied up the water too much for you, my advice would be to carry on and have fun with it, but give yourself a longer duration (days) for recovery and less volume.
Good luck-