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Finding the Fourth Proportional to 134,757.78, 185,964.26 and 74,330.97

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Solution

The fourth proportional to 134,757.78, 185,964.26 and 74,330.97 is: 102,575.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,757.78 : 185,964.26 = 74,330.97 : x
  2. Step 2: Convert to fraction form
    134,757.78/185,964.26 = 74,330.97/x
  3. Step 3: Cross multiply
    134,757.78x = 185,964.26 × 74,330.97
  4. Step 4: Simplify right side
    134,757.78x = 13,822,902,762.11
  5. Step 5: Solve for x
    x = 13,822,902,762.11/134,757.78
  6. Step 6: Final answer
    x = 102,575.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.