Home / 198,961.70-298,242.92-92,420.44

Finding the Fourth Proportional to 198,961.70, 298,242.92 and 92,420.44

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Solution

The fourth proportional to 198,961.70, 298,242.92 and 92,420.44 is: 138,537.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,961.70 : 298,242.92 = 92,420.44 : x
  2. Step 2: Convert to fraction form
    198,961.70/298,242.92 = 92,420.44/x
  3. Step 3: Cross multiply
    198,961.70x = 298,242.92 × 92,420.44
  4. Step 4: Simplify right side
    198,961.70x = 27,563,741,893.28
  5. Step 5: Solve for x
    x = 27,563,741,893.28/198,961.70
  6. Step 6: Final answer
    x = 138,537.93

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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.