Finding the Fourth Proportional to 129,217.68, 193,687.20 and 62,516.88
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Solution
The fourth proportional to 129,217.68, 193,687.20 and 62,516.88 is: 93,707.92
Step by Step Solution
- Step 1: Write the proportion equation
129,217.68 : 193,687.20 = 62,516.88 : x - Step 2: Convert to fraction form
129,217.68/193,687.20 = 62,516.88/x - Step 3: Cross multiply
129,217.68x = 193,687.20 × 62,516.88 - Step 4: Simplify right side
129,217.68x = 12,108,719,439.94 - Step 5: Solve for x
x = 12,108,719,439.94/129,217.68 - Step 6: Final answer
x = 93,707.92
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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.