Home / 198,817.11-274,277.21-118,198.89

Finding the Fourth Proportional to 198,817.11, 274,277.21 and 118,198.89

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Solution

The fourth proportional to 198,817.11, 274,277.21 and 118,198.89 is: 163,060.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,817.11 : 274,277.21 = 118,198.89 : x
  2. Step 2: Convert to fraction form
    198,817.11/274,277.21 = 118,198.89/x
  3. Step 3: Cross multiply
    198,817.11x = 274,277.21 × 118,198.89
  4. Step 4: Simplify right side
    198,817.11x = 32,419,261,183.30
  5. Step 5: Solve for x
    x = 32,419,261,183.30/198,817.11
  6. Step 6: Final answer
    x = 163,060.72

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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.