Home / 154,342.08-231,531.60-54,481.68

Finding the Fourth Proportional to 154,342.08, 231,531.60 and 54,481.68

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Solution

The fourth proportional to 154,342.08, 231,531.60 and 54,481.68 is: 81,729.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,342.08 : 231,531.60 = 54,481.68 : x
  2. Step 2: Convert to fraction form
    154,342.08/231,531.60 = 54,481.68/x
  3. Step 3: Cross multiply
    154,342.08x = 231,531.60 × 54,481.68
  4. Step 4: Simplify right side
    154,342.08x = 12,614,230,541.09
  5. Step 5: Solve for x
    x = 12,614,230,541.09/154,342.08
  6. Step 6: Final answer
    x = 81,729.04

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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.