Finding the Fourth Proportional to 132,646.68, 198,761.04 and 79,207.74
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Solution
The fourth proportional to 132,646.68, 198,761.04 and 79,207.74 is: 118,686.82
Step by Step Solution
- Step 1: Write the proportion equation
132,646.68 : 198,761.04 = 79,207.74 : x - Step 2: Convert to fraction form
132,646.68/198,761.04 = 79,207.74/x - Step 3: Cross multiply
132,646.68x = 198,761.04 × 79,207.74 - Step 4: Simplify right side
132,646.68x = 15,743,412,778.45 - Step 5: Solve for x
x = 15,743,412,778.45/132,646.68 - Step 6: Final answer
x = 118,686.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.