Home / 124,704.68-172,085.38-71,002.76

Finding the Fourth Proportional to 124,704.68, 172,085.38 and 71,002.76

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Solution

The fourth proportional to 124,704.68, 172,085.38 and 71,002.76 is: 97,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,704.68 : 172,085.38 = 71,002.76 : x
  2. Step 2: Convert to fraction form
    124,704.68/172,085.38 = 71,002.76/x
  3. Step 3: Cross multiply
    124,704.68x = 172,085.38 × 71,002.76
  4. Step 4: Simplify right side
    124,704.68x = 12,218,536,935.65
  5. Step 5: Solve for x
    x = 12,218,536,935.65/124,704.68
  6. Step 6: Final answer
    x = 97,979.78

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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.