Home / 124,954.48-172,432.88-71,256.78

Finding the Fourth Proportional to 124,954.48, 172,432.88 and 71,256.78

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Solution

The fourth proportional to 124,954.48, 172,432.88 and 71,256.78 is: 98,331.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,954.48 : 172,432.88 = 71,256.78 : x
  2. Step 2: Convert to fraction form
    124,954.48/172,432.88 = 71,256.78/x
  3. Step 3: Cross multiply
    124,954.48x = 172,432.88 × 71,256.78
  4. Step 4: Simplify right side
    124,954.48x = 12,287,011,794.93
  5. Step 5: Solve for x
    x = 12,287,011,794.93/124,954.48
  6. Step 6: Final answer
    x = 98,331.90

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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.