Home / 108,876.38-163,324.87-42,321.65

Finding the Fourth Proportional to 108,876.38, 163,324.87 and 42,321.65

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Solution

The fourth proportional to 108,876.38, 163,324.87 and 42,321.65 is: 63,486.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,876.38 : 163,324.87 = 42,321.65 : x
  2. Step 2: Convert to fraction form
    108,876.38/163,324.87 = 42,321.65/x
  3. Step 3: Cross multiply
    108,876.38x = 163,324.87 × 42,321.65
  4. Step 4: Simplify right side
    108,876.38x = 6,912,177,062.01
  5. Step 5: Solve for x
    x = 6,912,177,062.01/108,876.38
  6. Step 6: Final answer
    x = 63,486.47

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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.