Home / 154,407.76-231,085.68-129,475.96

Finding the Fourth Proportional to 154,407.76, 231,085.68 and 129,475.96

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Solution

The fourth proportional to 154,407.76, 231,085.68 and 129,475.96 is: 193,772.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,407.76 : 231,085.68 = 129,475.96 : x
  2. Step 2: Convert to fraction form
    154,407.76/231,085.68 = 129,475.96/x
  3. Step 3: Cross multiply
    154,407.76x = 231,085.68 × 129,475.96
  4. Step 4: Simplify right side
    154,407.76x = 29,920,040,260.25
  5. Step 5: Solve for x
    x = 29,920,040,260.25/154,407.76
  6. Step 6: Final answer
    x = 193,772.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.