In trapezoid PQRS, Base PQ is parallel to base RS. Let point X be the intersection of diagonals PR and QS. The area of triangle PQX is 20 and the area of triangle RSX is 48. Find the area of trapezoid PQRS.
If [RSX] = 48, then [PQRS] = 129.967648
but...
If [RSX] = 45, then [PQRS] = 125