Home / 198,640.75-274,124.24-109,216.75

Finding the Fourth Proportional to 198,640.75, 274,124.24 and 109,216.75

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Solution

The fourth proportional to 198,640.75, 274,124.24 and 109,216.75 is: 150,719.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,640.75 : 274,124.24 = 109,216.75 : x
  2. Step 2: Convert to fraction form
    198,640.75/274,124.24 = 109,216.75/x
  3. Step 3: Cross multiply
    198,640.75x = 274,124.24 × 109,216.75
  4. Step 4: Simplify right side
    198,640.75x = 29,938,958,589.02
  5. Step 5: Solve for x
    x = 29,938,958,589.02/198,640.75
  6. Step 6: Final answer
    x = 150,719.12

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1.5x scale

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.