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Finding the Fourth Proportional to 151,454.38, 209,042.68 and 94,137

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Solution

The fourth proportional to 151,454.38, 209,042.68 and 94,137 is: 129,931.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,454.38 : 209,042.68 = 94,137 : x
  2. Step 2: Convert to fraction form
    151,454.38/209,042.68 = 94,137/x
  3. Step 3: Cross multiply
    151,454.38x = 209,042.68 × 94,137
  4. Step 4: Simplify right side
    151,454.38x = 19,678,650,767.16
  5. Step 5: Solve for x
    x = 19,678,650,767.16/151,454.38
  6. Step 6: Final answer
    x = 129,931.21

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1.5x scale

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.