Home / 108,921.40-163,414.92-38,791.60

Finding the Fourth Proportional to 108,921.40, 163,414.92 and 38,791.60

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Solution

The fourth proportional to 108,921.40, 163,414.92 and 38,791.60 is: 58,199.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,921.40 : 163,414.92 = 38,791.60 : x
  2. Step 2: Convert to fraction form
    108,921.40/163,414.92 = 38,791.60/x
  3. Step 3: Cross multiply
    108,921.40x = 163,414.92 × 38,791.60
  4. Step 4: Simplify right side
    108,921.40x = 6,339,126,210.67
  5. Step 5: Solve for x
    x = 6,339,126,210.67/108,921.40
  6. Step 6: Final answer
    x = 58,199.09

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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.