Home / 125,021.28-187,531.92-54,901.20

Finding the Fourth Proportional to 125,021.28, 187,531.92 and 54,901.20

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Solution

The fourth proportional to 125,021.28, 187,531.92 and 54,901.20 is: 82,351.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,021.28 : 187,531.92 = 54,901.20 : x
  2. Step 2: Convert to fraction form
    125,021.28/187,531.92 = 54,901.20/x
  3. Step 3: Cross multiply
    125,021.28x = 187,531.92 × 54,901.20
  4. Step 4: Simplify right side
    125,021.28x = 10,295,727,446.30
  5. Step 5: Solve for x
    x = 10,295,727,446.30/125,021.28
  6. Step 6: Final answer
    x = 82,351.80

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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.