Home / 108,809.28-162,896.94-80,853.30

Finding the Fourth Proportional to 108,809.28, 162,896.94 and 80,853.30

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Solution

The fourth proportional to 108,809.28, 162,896.94 and 80,853.30 is: 121,044.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,809.28 : 162,896.94 = 80,853.30 : x
  2. Step 2: Convert to fraction form
    108,809.28/162,896.94 = 80,853.30/x
  3. Step 3: Cross multiply
    108,809.28x = 162,896.94 × 80,853.30
  4. Step 4: Simplify right side
    108,809.28x = 13,170,755,158.90
  5. Step 5: Solve for x
    x = 13,170,755,158.90/108,809.28
  6. Step 6: Final answer
    x = 121,044.41

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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.