Finding the Fourth Proportional to 125,734.95, 173,515.94 and 72,019.94
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Solution
The fourth proportional to 125,734.95, 173,515.94 and 72,019.94 is: 99,388.49
Step by Step Solution
- Step 1: Write the proportion equation
125,734.95 : 173,515.94 = 72,019.94 : x - Step 2: Convert to fraction form
125,734.95/173,515.94 = 72,019.94/x - Step 3: Cross multiply
125,734.95x = 173,515.94 × 72,019.94 - Step 4: Simplify right side
125,734.95x = 12,496,606,630.24 - Step 5: Solve for x
x = 12,496,606,630.24/125,734.95 - Step 6: Final answer
x = 99,388.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.