Home / 123,934.20-185,696.10-71,251.80

Finding the Fourth Proportional to 123,934.20, 185,696.10 and 71,251.80

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Solution

The fourth proportional to 123,934.20, 185,696.10 and 71,251.80 is: 106,759.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,934.20 : 185,696.10 = 71,251.80 : x
  2. Step 2: Convert to fraction form
    123,934.20/185,696.10 = 71,251.80/x
  3. Step 3: Cross multiply
    123,934.20x = 185,696.10 × 71,251.80
  4. Step 4: Simplify right side
    123,934.20x = 13,231,181,377.98
  5. Step 5: Solve for x
    x = 13,231,181,377.98/123,934.20
  6. Step 6: Final answer
    x = 106,759.73

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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.