Finding the Fourth Proportional to 132,572.76, 198,468.39 and 87,510.99
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Solution
The fourth proportional to 132,572.76, 198,468.39 and 87,510.99 is: 131,008.55
Step by Step Solution
- Step 1: Write the proportion equation
132,572.76 : 198,468.39 = 87,510.99 : x - Step 2: Convert to fraction form
132,572.76/198,468.39 = 87,510.99/x - Step 3: Cross multiply
132,572.76x = 198,468.39 × 87,510.99 - Step 4: Simplify right side
132,572.76x = 17,368,165,292.61 - Step 5: Solve for x
x = 17,368,165,292.61/132,572.76 - Step 6: Final answer
x = 131,008.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.