Home / 154,191.31-231,305.49-54,330.86

Finding the Fourth Proportional to 154,191.31, 231,305.49 and 54,330.86

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Solution

The fourth proportional to 154,191.31, 231,305.49 and 54,330.86 is: 81,502.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,191.31 : 231,305.49 = 54,330.86 : x
  2. Step 2: Convert to fraction form
    154,191.31/231,305.49 = 54,330.86/x
  3. Step 3: Cross multiply
    154,191.31x = 231,305.49 × 54,330.86
  4. Step 4: Simplify right side
    154,191.31x = 12,567,026,772.69
  5. Step 5: Solve for x
    x = 12,567,026,772.69/154,191.31
  6. Step 6: Final answer
    x = 81,502.82

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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.