Home / 231,724.17-319,736.97-129,751.20

Finding the Fourth Proportional to 231,724.17, 319,736.97 and 129,751.20

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Solution

The fourth proportional to 231,724.17, 319,736.97 and 129,751.20 is: 179,032.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,724.17 : 319,736.97 = 129,751.20 : x
  2. Step 2: Convert to fraction form
    231,724.17/319,736.97 = 129,751.20/x
  3. Step 3: Cross multiply
    231,724.17x = 319,736.97 × 129,751.20
  4. Step 4: Simplify right side
    231,724.17x = 41,486,255,541.86
  5. Step 5: Solve for x
    x = 41,486,255,541.86/231,724.17
  6. Step 6: Final answer
    x = 179,032.92

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1.5x scale

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.