Well first of all I actually train more females then men. Either Crossfit athletes or figure girls.
I use the same ratios but do not compare upper and lower body lifts. I only compare lower body lifts with lower body lifts (and olympic lifts) and upper body lifts with upper body lifts.
I find anyway that since girls rarely have upper body dominance like guys have, it is almost pointless to compare both (the goal in doing so is mostly to see if the guy overemphasized his upper body over the years).