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Finding the Fourth Proportional to 169,435.14, 254,145.03 and 74,639.97

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Solution

The fourth proportional to 169,435.14, 254,145.03 and 74,639.97 is: 111,956.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,435.14 : 254,145.03 = 74,639.97 : x
  2. Step 2: Convert to fraction form
    169,435.14/254,145.03 = 74,639.97/x
  3. Step 3: Cross multiply
    169,435.14x = 254,145.03 × 74,639.97
  4. Step 4: Simplify right side
    169,435.14x = 18,969,377,414.85
  5. Step 5: Solve for x
    x = 18,969,377,414.85/169,435.14
  6. Step 6: Final answer
    x = 111,956.57

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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.