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Finding the Fourth Proportional to 185,371.57, 278,078.97 and 67,098.61

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Solution

The fourth proportional to 185,371.57, 278,078.97 and 67,098.61 is: 100,655.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,371.57 : 278,078.97 = 67,098.61 : x
  2. Step 2: Convert to fraction form
    185,371.57/278,078.97 = 67,098.61/x
  3. Step 3: Cross multiply
    185,371.57x = 278,078.97 × 67,098.61
  4. Step 4: Simplify right side
    185,371.57x = 18,658,712,357.23
  5. Step 5: Solve for x
    x = 18,658,712,357.23/185,371.57
  6. Step 6: Final answer
    x = 100,655.74

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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.