Home / 108,666.20-162,780.60-73,236.80

Finding the Fourth Proportional to 108,666.20, 162,780.60 and 73,236.80

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Solution

The fourth proportional to 108,666.20, 162,780.60 and 73,236.80 is: 109,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,666.20 : 162,780.60 = 73,236.80 : x
  2. Step 2: Convert to fraction form
    108,666.20/162,780.60 = 73,236.80/x
  3. Step 3: Cross multiply
    108,666.20x = 162,780.60 × 73,236.80
  4. Step 4: Simplify right side
    108,666.20x = 11,921,530,246.08
  5. Step 5: Solve for x
    x = 11,921,530,246.08/108,666.20
  6. Step 6: Final answer
    x = 109,707.80

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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.