Home / 154,519.52-231,467.63-129,489.30

Finding the Fourth Proportional to 154,519.52, 231,467.63 and 129,489.30

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Solution

The fourth proportional to 154,519.52, 231,467.63 and 129,489.30 is: 193,972.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,519.52 : 231,467.63 = 129,489.30 : x
  2. Step 2: Convert to fraction form
    154,519.52/231,467.63 = 129,489.30/x
  3. Step 3: Cross multiply
    154,519.52x = 231,467.63 × 129,489.30
  4. Step 4: Simplify right side
    154,519.52x = 29,972,580,733.91
  5. Step 5: Solve for x
    x = 29,972,580,733.91/154,519.52
  6. Step 6: Final answer
    x = 193,972.79

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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.