Home / 231,046.30-318,840.38-129,073.22

Finding the Fourth Proportional to 231,046.30, 318,840.38 and 129,073.22

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Solution

The fourth proportional to 231,046.30, 318,840.38 and 129,073.22 is: 178,119.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,046.30 : 318,840.38 = 129,073.22 : x
  2. Step 2: Convert to fraction form
    231,046.30/318,840.38 = 129,073.22/x
  3. Step 3: Cross multiply
    231,046.30x = 318,840.38 × 129,073.22
  4. Step 4: Simplify right side
    231,046.30x = 41,153,754,512.62
  5. Step 5: Solve for x
    x = 41,153,754,512.62/231,046.30
  6. Step 6: Final answer
    x = 178,119.08

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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.