Home / 185,375.12-255,817.68-100,491.92

Finding the Fourth Proportional to 185,375.12, 255,817.68 and 100,491.92

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Solution

The fourth proportional to 185,375.12, 255,817.68 and 100,491.92 is: 138,678.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,375.12 : 255,817.68 = 100,491.92 : x
  2. Step 2: Convert to fraction form
    185,375.12/255,817.68 = 100,491.92/x
  3. Step 3: Cross multiply
    185,375.12x = 255,817.68 × 100,491.92
  4. Step 4: Simplify right side
    185,375.12x = 25,707,609,833.15
  5. Step 5: Solve for x
    x = 25,707,609,833.15/185,375.12
  6. Step 6: Final answer
    x = 138,678.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.