Home / 124,863.83-172,278.87-71,147.69

Finding the Fourth Proportional to 124,863.83, 172,278.87 and 71,147.69

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Solution

The fourth proportional to 124,863.83, 172,278.87 and 71,147.69 is: 98,164.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,863.83 : 172,278.87 = 71,147.69 : x
  2. Step 2: Convert to fraction form
    124,863.83/172,278.87 = 71,147.69/x
  3. Step 3: Cross multiply
    124,863.83x = 172,278.87 × 71,147.69
  4. Step 4: Simplify right side
    124,863.83x = 12,257,242,508.11
  5. Step 5: Solve for x
    x = 12,257,242,508.11/124,863.83
  6. Step 6: Final answer
    x = 98,164.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.