Home / 138,254.38-207,170.30-93,108.80

Finding the Fourth Proportional to 138,254.38, 207,170.30 and 93,108.80

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Solution

The fourth proportional to 138,254.38, 207,170.30 and 93,108.80 is: 139,520.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,254.38 : 207,170.30 = 93,108.80 : x
  2. Step 2: Convert to fraction form
    138,254.38/207,170.30 = 93,108.80/x
  3. Step 3: Cross multiply
    138,254.38x = 207,170.30 × 93,108.80
  4. Step 4: Simplify right side
    138,254.38x = 19,289,378,028.64
  5. Step 5: Solve for x
    x = 19,289,378,028.64/138,254.38
  6. Step 6: Final answer
    x = 139,520.92

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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.