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Finding the Fourth Proportional to 138,365.44, 207,425.28 and 50,752

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Solution

The fourth proportional to 138,365.44, 207,425.28 and 50,752 is: 76,082.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,365.44 : 207,425.28 = 50,752 : x
  2. Step 2: Convert to fraction form
    138,365.44/207,425.28 = 50,752/x
  3. Step 3: Cross multiply
    138,365.44x = 207,425.28 × 50,752
  4. Step 4: Simplify right side
    138,365.44x = 10,527,247,810.56
  5. Step 5: Solve for x
    x = 10,527,247,810.56/138,365.44
  6. Step 6: Final answer
    x = 76,082.93

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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.