Home / 154,229.24-231,343.86-54,336.80

Finding the Fourth Proportional to 154,229.24, 231,343.86 and 54,336.80

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Solution

The fourth proportional to 154,229.24, 231,343.86 and 54,336.80 is: 81,505.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,229.24 : 231,343.86 = 54,336.80 : x
  2. Step 2: Convert to fraction form
    154,229.24/231,343.86 = 54,336.80/x
  3. Step 3: Cross multiply
    154,229.24x = 231,343.86 × 54,336.80
  4. Step 4: Simplify right side
    154,229.24x = 12,570,485,052.05
  5. Step 5: Solve for x
    x = 12,570,485,052.05/154,229.24
  6. Step 6: Final answer
    x = 81,505.20

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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.