Home / 198,933.20-274,531.30-108,291.76

Finding the Fourth Proportional to 198,933.20, 274,531.30 and 108,291.76

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Solution

The fourth proportional to 198,933.20, 274,531.30 and 108,291.76 is: 149,444.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,933.20 : 274,531.30 = 108,291.76 : x
  2. Step 2: Convert to fraction form
    198,933.20/274,531.30 = 108,291.76/x
  3. Step 3: Cross multiply
    198,933.20x = 274,531.30 × 108,291.76
  4. Step 4: Simplify right side
    198,933.20x = 29,729,477,652.09
  5. Step 5: Solve for x
    x = 29,729,477,652.09/198,933.20
  6. Step 6: Final answer
    x = 149,444.53

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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.