Home / 108,876.06-163,324.38-42,321.30

Finding the Fourth Proportional to 108,876.06, 163,324.38 and 42,321.30

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Solution

The fourth proportional to 108,876.06, 163,324.38 and 42,321.30 is: 63,485.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,876.06 : 163,324.38 = 42,321.30 : x
  2. Step 2: Convert to fraction form
    108,876.06/163,324.38 = 42,321.30/x
  3. Step 3: Cross multiply
    108,876.06x = 163,324.38 × 42,321.30
  4. Step 4: Simplify right side
    108,876.06x = 6,912,100,083.29
  5. Step 5: Solve for x
    x = 6,912,100,083.29/108,876.06
  6. Step 6: Final answer
    x = 63,485.95

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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.