Home / 124,764.75-172,175.13-71,049.78

Finding the Fourth Proportional to 124,764.75, 172,175.13 and 71,049.78

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Solution

The fourth proportional to 124,764.75, 172,175.13 and 71,049.78 is: 98,048.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,764.75 : 172,175.13 = 71,049.78 : x
  2. Step 2: Convert to fraction form
    124,764.75/172,175.13 = 71,049.78/x
  3. Step 3: Cross multiply
    124,764.75x = 172,175.13 × 71,049.78
  4. Step 4: Simplify right side
    124,764.75x = 12,233,005,107.97
  5. Step 5: Solve for x
    x = 12,233,005,107.97/124,764.75
  6. Step 6: Final answer
    x = 98,048.57

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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.