Home / 198,770.45-274,310.54-113,903.92

Finding the Fourth Proportional to 198,770.45, 274,310.54 and 113,903.92

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Solution

The fourth proportional to 198,770.45, 274,310.54 and 113,903.92 is: 157,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,770.45 : 274,310.54 = 113,903.92 : x
  2. Step 2: Convert to fraction form
    198,770.45/274,310.54 = 113,903.92/x
  3. Step 3: Cross multiply
    198,770.45x = 274,310.54 × 113,903.92
  4. Step 4: Simplify right side
    198,770.45x = 31,245,045,402.30
  5. Step 5: Solve for x
    x = 31,245,045,402.30/198,770.45
  6. Step 6: Final answer
    x = 157,191.60

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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.