Finding the Fourth Proportional to 117,612.47, 176,479.08 and 57,639.82
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Solution
The fourth proportional to 117,612.47, 176,479.08 and 57,639.82 is: 86,489.32
Step by Step Solution
- Step 1: Write the proportion equation
117,612.47 : 176,479.08 = 57,639.82 : x - Step 2: Convert to fraction form
117,612.47/176,479.08 = 57,639.82/x - Step 3: Cross multiply
117,612.47x = 176,479.08 × 57,639.82 - Step 4: Simplify right side
117,612.47x = 10,172,222,404.97 - Step 5: Solve for x
x = 10,172,222,404.97/117,612.47 - Step 6: Final answer
x = 86,489.32
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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.