Home / 185,691.56-256,254.30-100,808.62

Finding the Fourth Proportional to 185,691.56, 256,254.30 and 100,808.62

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Solution

The fourth proportional to 185,691.56, 256,254.30 and 100,808.62 is: 139,115.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,691.56 : 256,254.30 = 100,808.62 : x
  2. Step 2: Convert to fraction form
    185,691.56/256,254.30 = 100,808.62/x
  3. Step 3: Cross multiply
    185,691.56x = 256,254.30 × 100,808.62
  4. Step 4: Simplify right side
    185,691.56x = 25,832,641,711.43
  5. Step 5: Solve for x
    x = 25,832,641,711.43/185,691.56
  6. Step 6: Final answer
    x = 139,115.87

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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.