Home / 138,292.78-207,086.14-110,253.72

Finding the Fourth Proportional to 138,292.78, 207,086.14 and 110,253.72

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Solution

The fourth proportional to 138,292.78, 207,086.14 and 110,253.72 is: 165,099.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,292.78 : 207,086.14 = 110,253.72 : x
  2. Step 2: Convert to fraction form
    138,292.78/207,086.14 = 110,253.72/x
  3. Step 3: Cross multiply
    138,292.78x = 207,086.14 × 110,253.72
  4. Step 4: Simplify right side
    138,292.78x = 22,832,018,519.92
  5. Step 5: Solve for x
    x = 22,832,018,519.92/138,292.78
  6. Step 6: Final answer
    x = 165,099.14

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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.