Home / 138,018.06-207,070.85-49,269.66

Finding the Fourth Proportional to 138,018.06, 207,070.85 and 49,269.66

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Solution

The fourth proportional to 138,018.06, 207,070.85 and 49,269.66 is: 73,920.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,018.06 : 207,070.85 = 49,269.66 : x
  2. Step 2: Convert to fraction form
    138,018.06/207,070.85 = 49,269.66/x
  3. Step 3: Cross multiply
    138,018.06x = 207,070.85 × 49,269.66
  4. Step 4: Simplify right side
    138,018.06x = 10,202,310,375.41
  5. Step 5: Solve for x
    x = 10,202,310,375.41/138,018.06
  6. Step 6: Final answer
    x = 73,920.11

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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.