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Finding the Fourth Proportional to 159,560.33, 220,194.68 and 87,942.86

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Solution

The fourth proportional to 159,560.33, 220,194.68 and 87,942.86 is: 121,361.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,560.33 : 220,194.68 = 87,942.86 : x
  2. Step 2: Convert to fraction form
    159,560.33/220,194.68 = 87,942.86/x
  3. Step 3: Cross multiply
    159,560.33x = 220,194.68 × 87,942.86
  4. Step 4: Simplify right side
    159,560.33x = 19,364,548,375.30
  5. Step 5: Solve for x
    x = 19,364,548,375.30/159,560.33
  6. Step 6: Final answer
    x = 121,361.93

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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.