Home / 198,749.18-274,278.38-108,109.98

Finding the Fourth Proportional to 198,749.18, 274,278.38 and 108,109.98

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Solution

The fourth proportional to 198,749.18, 274,278.38 and 108,109.98 is: 149,194.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,749.18 : 274,278.38 = 108,109.98 : x
  2. Step 2: Convert to fraction form
    198,749.18/274,278.38 = 108,109.98/x
  3. Step 3: Cross multiply
    198,749.18x = 274,278.38 × 108,109.98
  4. Step 4: Simplify right side
    198,749.18x = 29,652,229,635.68
  5. Step 5: Solve for x
    x = 29,652,229,635.68/198,749.18
  6. Step 6: Final answer
    x = 149,194.23

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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.