Home / 361,375.28-542,149.04-124,720

Finding the Fourth Proportional to 361,375.28, 542,149.04 and 124,720

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Solution

The fourth proportional to 361,375.28, 542,149.04 and 124,720 is: 187,109.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,375.28 : 542,149.04 = 124,720 : x
  2. Step 2: Convert to fraction form
    361,375.28/542,149.04 = 124,720/x
  3. Step 3: Cross multiply
    361,375.28x = 542,149.04 × 124,720
  4. Step 4: Simplify right side
    361,375.28x = 67,616,828,268.80
  5. Step 5: Solve for x
    x = 67,616,828,268.80/361,375.28
  6. Step 6: Final answer
    x = 187,109.72

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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.