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Finding the Fourth Proportional to 150,149.44, 207,171.42 and 89,739.64

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Solution

The fourth proportional to 150,149.44, 207,171.42 and 89,739.64 is: 123,819.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,149.44 : 207,171.42 = 89,739.64 : x
  2. Step 2: Convert to fraction form
    150,149.44/207,171.42 = 89,739.64/x
  3. Step 3: Cross multiply
    150,149.44x = 207,171.42 × 89,739.64
  4. Step 4: Simplify right side
    150,149.44x = 18,591,488,649.09
  5. Step 5: Solve for x
    x = 18,591,488,649.09/150,149.44
  6. Step 6: Final answer
    x = 123,819.90

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1.5x scale

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.