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Finding the Fourth Proportional to 134,614.30, 185,766.87 and 74,185.42

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Solution

The fourth proportional to 134,614.30, 185,766.87 and 74,185.42 is: 102,375.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,614.30 : 185,766.87 = 74,185.42 : x
  2. Step 2: Convert to fraction form
    134,614.30/185,766.87 = 74,185.42/x
  3. Step 3: Cross multiply
    134,614.30x = 185,766.87 × 74,185.42
  4. Step 4: Simplify right side
    134,614.30x = 13,781,193,273.04
  5. Step 5: Solve for x
    x = 13,781,193,273.04/134,614.30
  6. Step 6: Final answer
    x = 102,375.40

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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.