Home / 108,723.21-162,819.05-64,217.85

Finding the Fourth Proportional to 108,723.21, 162,819.05 and 64,217.85

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Solution

The fourth proportional to 108,723.21, 162,819.05 and 64,217.85 is: 96,169.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,723.21 : 162,819.05 = 64,217.85 : x
  2. Step 2: Convert to fraction form
    108,723.21/162,819.05 = 64,217.85/x
  3. Step 3: Cross multiply
    108,723.21x = 162,819.05 × 64,217.85
  4. Step 4: Simplify right side
    108,723.21x = 10,455,889,008.95
  5. Step 5: Solve for x
    x = 10,455,889,008.95/108,723.21
  6. Step 6: Final answer
    x = 96,169.80

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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.