Home / 108,439.68-162,422.61-45,067.66

Finding the Fourth Proportional to 108,439.68, 162,422.61 and 45,067.66

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Solution

The fourth proportional to 108,439.68, 162,422.61 and 45,067.66 is: 67,503.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,439.68 : 162,422.61 = 45,067.66 : x
  2. Step 2: Convert to fraction form
    108,439.68/162,422.61 = 45,067.66/x
  3. Step 3: Cross multiply
    108,439.68x = 162,422.61 × 45,067.66
  4. Step 4: Simplify right side
    108,439.68x = 7,320,006,963.79
  5. Step 5: Solve for x
    x = 7,320,006,963.79/108,439.68
  6. Step 6: Final answer
    x = 67,503.03

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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.