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Finding the Fourth Proportional to 108,031.20, 161,998.20 and 41,449.20

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Solution

The fourth proportional to 108,031.20, 161,998.20 and 41,449.20 is: 62,155.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,031.20 : 161,998.20 = 41,449.20 : x
  2. Step 2: Convert to fraction form
    108,031.20/161,998.20 = 41,449.20/x
  3. Step 3: Cross multiply
    108,031.20x = 161,998.20 × 41,449.20
  4. Step 4: Simplify right side
    108,031.20x = 6,714,695,791.44
  5. Step 5: Solve for x
    x = 6,714,695,791.44/108,031.20
  6. Step 6: Final answer
    x = 62,155.15

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1.5x scale

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.