Home / 107,819.20-161,757.60-96,212.80

Finding the Fourth Proportional to 107,819.20, 161,757.60 and 96,212.80

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Solution

The fourth proportional to 107,819.20, 161,757.60 and 96,212.80 is: 144,344.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,819.20 : 161,757.60 = 96,212.80 : x
  2. Step 2: Convert to fraction form
    107,819.20/161,757.60 = 96,212.80/x
  3. Step 3: Cross multiply
    107,819.20x = 161,757.60 × 96,212.80
  4. Step 4: Simplify right side
    107,819.20x = 15,563,151,617.28
  5. Step 5: Solve for x
    x = 15,563,151,617.28/107,819.20
  6. Step 6: Final answer
    x = 144,344.90

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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.