Home / 108,031.20-162,039.12-29,149.92

Finding the Fourth Proportional to 108,031.20, 162,039.12 and 29,149.92

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Solution

The fourth proportional to 108,031.20, 162,039.12 and 29,149.92 is: 43,722.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,031.20 : 162,039.12 = 29,149.92 : x
  2. Step 2: Convert to fraction form
    108,031.20/162,039.12 = 29,149.92/x
  3. Step 3: Cross multiply
    108,031.20x = 162,039.12 × 29,149.92
  4. Step 4: Simplify right side
    108,031.20x = 4,723,427,384.87
  5. Step 5: Solve for x
    x = 4,723,427,384.87/108,031.20
  6. Step 6: Final answer
    x = 43,722.81

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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.