Home / 154,291.20-231,379.20-107,404.80

Finding the Fourth Proportional to 154,291.20, 231,379.20 and 107,404.80

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Solution

The fourth proportional to 154,291.20, 231,379.20 and 107,404.80 is: 161,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,291.20 : 231,379.20 = 107,404.80 : x
  2. Step 2: Convert to fraction form
    154,291.20/231,379.20 = 107,404.80/x
  3. Step 3: Cross multiply
    154,291.20x = 231,379.20 × 107,404.80
  4. Step 4: Simplify right side
    154,291.20x = 24,851,236,700.16
  5. Step 5: Solve for x
    x = 24,851,236,700.16/154,291.20
  6. Step 6: Final answer
    x = 161,067.10

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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.