Home / 83,456.19-124,439.85-74,183.31

Finding the Fourth Proportional to 83,456.19, 124,439.85 and 74,183.31

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Solution

The fourth proportional to 83,456.19, 124,439.85 and 74,183.31 is: 110,613.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,456.19 : 124,439.85 = 74,183.31 : x
  2. Step 2: Convert to fraction form
    83,456.19/124,439.85 = 74,183.31/x
  3. Step 3: Cross multiply
    83,456.19x = 124,439.85 × 74,183.31
  4. Step 4: Simplify right side
    83,456.19x = 9,231,359,968.90
  5. Step 5: Solve for x
    x = 9,231,359,968.90/83,456.19
  6. Step 6: Final answer
    x = 110,613.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.