Home / 83,254.20-124,881.30-82,379.40

Finding the Fourth Proportional to 83,254.20, 124,881.30 and 82,379.40

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Solution

The fourth proportional to 83,254.20, 124,881.30 and 82,379.40 is: 123,569.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,254.20 : 124,881.30 = 82,379.40 : x
  2. Step 2: Convert to fraction form
    83,254.20/124,881.30 = 82,379.40/x
  3. Step 3: Cross multiply
    83,254.20x = 124,881.30 × 82,379.40
  4. Step 4: Simplify right side
    83,254.20x = 10,287,646,565.22
  5. Step 5: Solve for x
    x = 10,287,646,565.22/83,254.20
  6. Step 6: Final answer
    x = 123,569.10

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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.