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Finding the Fourth Proportional to 100,122.05, 150,152.08 and 29,049.90

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Solution

The fourth proportional to 100,122.05, 150,152.08 and 29,049.90 is: 43,565.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,122.05 : 150,152.08 = 29,049.90 : x
  2. Step 2: Convert to fraction form
    100,122.05/150,152.08 = 29,049.90/x
  3. Step 3: Cross multiply
    100,122.05x = 150,152.08 × 29,049.90
  4. Step 4: Simplify right side
    100,122.05x = 4,361,902,908.79
  5. Step 5: Solve for x
    x = 4,361,902,908.79/100,122.05
  6. Step 6: Final answer
    x = 43,565.86

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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.