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Finding the Fourth Proportional to 100,969.20, 151,452.08 and 29,891.53

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Solution

The fourth proportional to 100,969.20, 151,452.08 and 29,891.53 is: 44,836.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,969.20 : 151,452.08 = 29,891.53 : x
  2. Step 2: Convert to fraction form
    100,969.20/151,452.08 = 29,891.53/x
  3. Step 3: Cross multiply
    100,969.20x = 151,452.08 × 29,891.53
  4. Step 4: Simplify right side
    100,969.20x = 4,527,134,392.88
  5. Step 5: Solve for x
    x = 4,527,134,392.88/100,969.20
  6. Step 6: Final answer
    x = 44,836.79

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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.