Home / 198,963.42-298,548.81-88,129.50

Finding the Fourth Proportional to 198,963.42, 298,548.81 and 88,129.50

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Solution

The fourth proportional to 198,963.42, 298,548.81 and 88,129.50 is: 132,240.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,963.42 : 298,548.81 = 88,129.50 : x
  2. Step 2: Convert to fraction form
    198,963.42/298,548.81 = 88,129.50/x
  3. Step 3: Cross multiply
    198,963.42x = 298,548.81 × 88,129.50
  4. Step 4: Simplify right side
    198,963.42x = 26,310,957,350.90
  5. Step 5: Solve for x
    x = 26,310,957,350.90/198,963.42
  6. Step 6: Final answer
    x = 132,240.17

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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.