Home / 198,556.79-274,010.11-107,912.72

Finding the Fourth Proportional to 198,556.79, 274,010.11 and 107,912.72

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Solution

The fourth proportional to 198,556.79, 274,010.11 and 107,912.72 is: 148,920.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,556.79 : 274,010.11 = 107,912.72 : x
  2. Step 2: Convert to fraction form
    198,556.79/274,010.11 = 107,912.72/x
  3. Step 3: Cross multiply
    198,556.79x = 274,010.11 × 107,912.72
  4. Step 4: Simplify right side
    198,556.79x = 29,569,176,692.84
  5. Step 5: Solve for x
    x = 29,569,176,692.84/198,556.79
  6. Step 6: Final answer
    x = 148,920.50

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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.