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Finding the Fourth Proportional to 117,545.97, 162,213.45 and 63,831

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Solution

The fourth proportional to 117,545.97, 162,213.45 and 63,831 is: 88,086.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,545.97 : 162,213.45 = 63,831 : x
  2. Step 2: Convert to fraction form
    117,545.97/162,213.45 = 63,831/x
  3. Step 3: Cross multiply
    117,545.97x = 162,213.45 × 63,831
  4. Step 4: Simplify right side
    117,545.97x = 10,354,246,726.95
  5. Step 5: Solve for x
    x = 10,354,246,726.95/117,545.97
  6. Step 6: Final answer
    x = 88,086.79

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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.