Home / 198,634.75-274,115.96-109,210.75

Finding the Fourth Proportional to 198,634.75, 274,115.96 and 109,210.75

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Solution

The fourth proportional to 198,634.75, 274,115.96 and 109,210.75 is: 150,710.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,634.75 : 274,115.96 = 109,210.75 : x
  2. Step 2: Convert to fraction form
    198,634.75/274,115.96 = 109,210.75/x
  3. Step 3: Cross multiply
    198,634.75x = 274,115.96 × 109,210.75
  4. Step 4: Simplify right side
    198,634.75x = 29,936,409,578.57
  5. Step 5: Solve for x
    x = 29,936,409,578.57/198,634.75
  6. Step 6: Final answer
    x = 150,710.84

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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.