Home / 325,979.92-488,687.19-126,162.78

Finding the Fourth Proportional to 325,979.92, 488,687.19 and 126,162.78

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Solution

The fourth proportional to 325,979.92, 488,687.19 and 126,162.78 is: 189,134.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,979.92 : 488,687.19 = 126,162.78 : x
  2. Step 2: Convert to fraction form
    325,979.92/488,687.19 = 126,162.78/x
  3. Step 3: Cross multiply
    325,979.92x = 488,687.19 × 126,162.78
  4. Step 4: Simplify right side
    325,979.92x = 61,654,134,440.79
  5. Step 5: Solve for x
    x = 61,654,134,440.79/325,979.92
  6. Step 6: Final answer
    x = 189,134.76

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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.