For series connection – the same current rating of the panels is more important.
For parallel connection – the same voltage rating of the panels is more important.
I think Burns calculations are correct and would configure the panels in parallel resulting in 8.6A at 17.7V totaling 152W. A parallel connection of these mixed panels only loses 1.2% of the potential wattage.
2018 Globetrotter 27Q, 36 nights 5,235 miles, 600W Solar - Produced 50 kWh, PD4655L, 6V Batteries, Champion DualFuel, ProPride, 16" tires, 2019 F250 PSD
Sold: 2017 FC25FB, 316 nights 40,150 miles, 400W Solar - Produced 200 kWh in 216 days
2013 Casita SD17 89 nights 16,200 miles