Home / 154,132.86-231,198.20-79,273.88

Finding the Fourth Proportional to 154,132.86, 231,198.20 and 79,273.88

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Solution

The fourth proportional to 154,132.86, 231,198.20 and 79,273.88 is: 118,910.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,132.86 : 231,198.20 = 79,273.88 : x
  2. Step 2: Convert to fraction form
    154,132.86/231,198.20 = 79,273.88/x
  3. Step 3: Cross multiply
    154,132.86x = 231,198.20 × 79,273.88
  4. Step 4: Simplify right side
    154,132.86x = 18,327,978,363.02
  5. Step 5: Solve for x
    x = 18,327,978,363.02/154,132.86
  6. Step 6: Final answer
    x = 118,910.26

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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.