Home / 133,278.96-199,819.66-80,676

Finding the Fourth Proportional to 133,278.96, 199,819.66 and 80,676

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Solution

The fourth proportional to 133,278.96, 199,819.66 and 80,676 is: 120,954.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,278.96 : 199,819.66 = 80,676 : x
  2. Step 2: Convert to fraction form
    133,278.96/199,819.66 = 80,676/x
  3. Step 3: Cross multiply
    133,278.96x = 199,819.66 × 80,676
  4. Step 4: Simplify right side
    133,278.96x = 16,120,650,890.16
  5. Step 5: Solve for x
    x = 16,120,650,890.16/133,278.96
  6. Step 6: Final answer
    x = 120,954.21

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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.