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Finding the Fourth Proportional to 138,504.71, 207,764.75 and 43,737.14

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Solution

The fourth proportional to 138,504.71, 207,764.75 and 43,737.14 is: 65,608.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,504.71 : 207,764.75 = 43,737.14 : x
  2. Step 2: Convert to fraction form
    138,504.71/207,764.75 = 43,737.14/x
  3. Step 3: Cross multiply
    138,504.71x = 207,764.75 × 43,737.14
  4. Step 4: Simplify right side
    138,504.71x = 9,087,035,028.33
  5. Step 5: Solve for x
    x = 9,087,035,028.33/138,504.71
  6. Step 6: Final answer
    x = 65,608.13

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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.