Finding the Fourth Proportional to 100,151.87, 138,209.36 and 59,863.68
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Solution
The fourth proportional to 100,151.87, 138,209.36 and 59,863.68 is: 82,611.75
Step by Step Solution
- Step 1: Write the proportion equation
100,151.87 : 138,209.36 = 59,863.68 : x - Step 2: Convert to fraction form
100,151.87/138,209.36 = 59,863.68/x - Step 3: Cross multiply
100,151.87x = 138,209.36 × 59,863.68 - Step 4: Simplify right side
100,151.87x = 8,273,720,600.73 - Step 5: Solve for x
x = 8,273,720,600.73/100,151.87 - Step 6: Final answer
x = 82,611.75
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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.