Home / 108,546.20-162,819.30-73,116.80

Finding the Fourth Proportional to 108,546.20, 162,819.30 and 73,116.80

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Solution

The fourth proportional to 108,546.20, 162,819.30 and 73,116.80 is: 109,675.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,546.20 : 162,819.30 = 73,116.80 : x
  2. Step 2: Convert to fraction form
    108,546.20/162,819.30 = 73,116.80/x
  3. Step 3: Cross multiply
    108,546.20x = 162,819.30 × 73,116.80
  4. Step 4: Simplify right side
    108,546.20x = 11,904,826,194.24
  5. Step 5: Solve for x
    x = 11,904,826,194.24/108,546.20
  6. Step 6: Final answer
    x = 109,675.20

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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.