Home / 154,375.20-231,393.87-79,499.88

Finding the Fourth Proportional to 154,375.20, 231,393.87 and 79,499.88

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Solution

The fourth proportional to 154,375.20, 231,393.87 and 79,499.88 is: 119,162.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,375.20 : 231,393.87 = 79,499.88 : x
  2. Step 2: Convert to fraction form
    154,375.20/231,393.87 = 79,499.88/x
  3. Step 3: Cross multiply
    154,375.20x = 231,393.87 × 79,499.88
  4. Step 4: Simplify right side
    154,375.20x = 18,395,784,897.74
  5. Step 5: Solve for x
    x = 18,395,784,897.74/154,375.20
  6. Step 6: Final answer
    x = 119,162.82

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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.