Home / 159,200.38-219,517.15-122,819.02

Finding the Fourth Proportional to 159,200.38, 219,517.15 and 122,819.02

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Solution

The fourth proportional to 159,200.38, 219,517.15 and 122,819.02 is: 169,351.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,200.38 : 219,517.15 = 122,819.02 : x
  2. Step 2: Convert to fraction form
    159,200.38/219,517.15 = 122,819.02/x
  3. Step 3: Cross multiply
    159,200.38x = 219,517.15 × 122,819.02
  4. Step 4: Simplify right side
    159,200.38x = 26,960,881,236.19
  5. Step 5: Solve for x
    x = 26,960,881,236.19/159,200.38
  6. Step 6: Final answer
    x = 169,351.86

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1.5x scale

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.