Finding the Fourth Proportional to 156,314.05, 215,711.97 and 88,329.80
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Solution
The fourth proportional to 156,314.05, 215,711.97 and 88,329.80 is: 121,894.32
Step by Step Solution
- Step 1: Write the proportion equation
156,314.05 : 215,711.97 = 88,329.80 : x - Step 2: Convert to fraction form
156,314.05/215,711.97 = 88,329.80/x - Step 3: Cross multiply
156,314.05x = 215,711.97 × 88,329.80 - Step 4: Simplify right side
156,314.05x = 19,053,795,167.71 - Step 5: Solve for x
x = 19,053,795,167.71/156,314.05 - Step 6: Final answer
x = 121,894.32
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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.