Home / 198,556.41-274,009.67-107,912.62

Finding the Fourth Proportional to 198,556.41, 274,009.67 and 107,912.62

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Solution

The fourth proportional to 198,556.41, 274,009.67 and 107,912.62 is: 148,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,556.41 : 274,009.67 = 107,912.62 : x
  2. Step 2: Convert to fraction form
    198,556.41/274,009.67 = 107,912.62/x
  3. Step 3: Cross multiply
    198,556.41x = 274,009.67 × 107,912.62
  4. Step 4: Simplify right side
    198,556.41x = 29,569,100,170.45
  5. Step 5: Solve for x
    x = 29,569,100,170.45/198,556.41
  6. Step 6: Final answer
    x = 148,920.40

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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.