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Finding the Fourth Proportional to 138,141.60, 207,160.32 and 44,622.24

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Solution

The fourth proportional to 138,141.60, 207,160.32 and 44,622.24 is: 66,916.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,141.60 : 207,160.32 = 44,622.24 : x
  2. Step 2: Convert to fraction form
    138,141.60/207,160.32 = 44,622.24/x
  3. Step 3: Cross multiply
    138,141.60x = 207,160.32 × 44,622.24
  4. Step 4: Simplify right side
    138,141.60x = 9,243,957,517.52
  5. Step 5: Solve for x
    x = 9,243,957,517.52/138,141.60
  6. Step 6: Final answer
    x = 66,916.54

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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.