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Finding the Fourth Proportional to 124,377, 171,520.38 and 83,632.92

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Solution

The fourth proportional to 124,377, 171,520.38 and 83,632.92 is: 115,332.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,377 : 171,520.38 = 83,632.92 : x
  2. Step 2: Convert to fraction form
    124,377/171,520.38 = 83,632.92/x
  3. Step 3: Cross multiply
    124,377x = 171,520.38 × 83,632.92
  4. Step 4: Simplify right side
    124,377x = 14,344,750,218.91
  5. Step 5: Solve for x
    x = 14,344,750,218.91/124,377
  6. Step 6: Final answer
    x = 115,332.82

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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.