Home / 124,391.12-186,439.04-71,691.71

Finding the Fourth Proportional to 124,391.12, 186,439.04 and 71,691.71

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Solution

The fourth proportional to 124,391.12, 186,439.04 and 71,691.71 is: 107,452.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,391.12 : 186,439.04 = 71,691.71 : x
  2. Step 2: Convert to fraction form
    124,391.12/186,439.04 = 71,691.71/x
  3. Step 3: Cross multiply
    124,391.12x = 186,439.04 × 71,691.71
  4. Step 4: Simplify right side
    124,391.12x = 13,366,132,297.70
  5. Step 5: Solve for x
    x = 13,366,132,297.70/124,391.12
  6. Step 6: Final answer
    x = 107,452.47

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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.