Home / 159,540.38-220,167.18-87,922.96

Finding the Fourth Proportional to 159,540.38, 220,167.18 and 87,922.96

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Solution

The fourth proportional to 159,540.38, 220,167.18 and 87,922.96 is: 121,334.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,540.38 : 220,167.18 = 87,922.96 : x
  2. Step 2: Convert to fraction form
    159,540.38/220,167.18 = 87,922.96/x
  3. Step 3: Cross multiply
    159,540.38x = 220,167.18 × 87,922.96
  4. Step 4: Simplify right side
    159,540.38x = 19,357,750,160.45
  5. Step 5: Solve for x
    x = 19,357,750,160.45/159,540.38
  6. Step 6: Final answer
    x = 121,334.49

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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.