Home / 198,961.92-298,546.56-88,128

Finding the Fourth Proportional to 198,961.92, 298,546.56 and 88,128

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Solution

The fourth proportional to 198,961.92, 298,546.56 and 88,128 is: 132,237.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,961.92 : 298,546.56 = 88,128 : x
  2. Step 2: Convert to fraction form
    198,961.92/298,546.56 = 88,128/x
  3. Step 3: Cross multiply
    198,961.92x = 298,546.56 × 88,128
  4. Step 4: Simplify right side
    198,961.92x = 26,310,311,239.68
  5. Step 5: Solve for x
    x = 26,310,311,239.68/198,961.92
  6. Step 6: Final answer
    x = 132,237.92

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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.