Home / 124,915.61-172,379.22-71,217.92

Finding the Fourth Proportional to 124,915.61, 172,379.22 and 71,217.92

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Solution

The fourth proportional to 124,915.61, 172,379.22 and 71,217.92 is: 98,278.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,915.61 : 172,379.22 = 71,217.92 : x
  2. Step 2: Convert to fraction form
    124,915.61/172,379.22 = 71,217.92/x
  3. Step 3: Cross multiply
    124,915.61x = 172,379.22 × 71,217.92
  4. Step 4: Simplify right side
    124,915.61x = 12,276,488,637.73
  5. Step 5: Solve for x
    x = 12,276,488,637.73/124,915.61
  6. Step 6: Final answer
    x = 98,278.26

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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.