Home / 159,414.03-219,990.33-87,793.56

Finding the Fourth Proportional to 159,414.03, 219,990.33 and 87,793.56

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Solution

The fourth proportional to 159,414.03, 219,990.33 and 87,793.56 is: 121,154.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,414.03 : 219,990.33 = 87,793.56 : x
  2. Step 2: Convert to fraction form
    159,414.03/219,990.33 = 87,793.56/x
  3. Step 3: Cross multiply
    159,414.03x = 219,990.33 × 87,793.56
  4. Step 4: Simplify right side
    159,414.03x = 19,313,734,236.27
  5. Step 5: Solve for x
    x = 19,313,734,236.27/159,414.03
  6. Step 6: Final answer
    x = 121,154.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.