Home / 198,986.40-274,600.80-108,340.92

Finding the Fourth Proportional to 198,986.40, 274,600.80 and 108,340.92

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Solution

The fourth proportional to 198,986.40, 274,600.80 and 108,340.92 is: 149,510.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,986.40 : 274,600.80 = 108,340.92 : x
  2. Step 2: Convert to fraction form
    198,986.40/274,600.80 = 108,340.92/x
  3. Step 3: Cross multiply
    198,986.40x = 274,600.80 × 108,340.92
  4. Step 4: Simplify right side
    198,986.40x = 29,750,503,304.74
  5. Step 5: Solve for x
    x = 29,750,503,304.74/198,986.40
  6. Step 6: Final answer
    x = 149,510.23

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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.