Finding the Fourth Proportional to 88,337.62, 121,951.07 and 68,149.18
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Solution
The fourth proportional to 88,337.62, 121,951.07 and 68,149.18 is: 94,080.70
Step by Step Solution
- Step 1: Write the proportion equation
88,337.62 : 121,951.07 = 68,149.18 : x - Step 2: Convert to fraction form
88,337.62/121,951.07 = 68,149.18/x - Step 3: Cross multiply
88,337.62x = 121,951.07 × 68,149.18 - Step 4: Simplify right side
88,337.62x = 8,310,865,420.62 - Step 5: Solve for x
x = 8,310,865,420.62/88,337.62 - Step 6: Final answer
x = 94,080.70
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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.