Home / 198,631.84-274,104.72-109,205.92

Finding the Fourth Proportional to 198,631.84, 274,104.72 and 109,205.92

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Solution

The fourth proportional to 198,631.84, 274,104.72 and 109,205.92 is: 150,700.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,631.84 : 274,104.72 = 109,205.92 : x
  2. Step 2: Convert to fraction form
    198,631.84/274,104.72 = 109,205.92/x
  3. Step 3: Cross multiply
    198,631.84x = 274,104.72 × 109,205.92
  4. Step 4: Simplify right side
    198,631.84x = 29,933,858,123.94
  5. Step 5: Solve for x
    x = 29,933,858,123.94/198,631.84
  6. Step 6: Final answer
    x = 150,700.20

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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.