Home / 198,556.53-274,010.13-107,912.50

Finding the Fourth Proportional to 198,556.53, 274,010.13 and 107,912.50

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Solution

The fourth proportional to 198,556.53, 274,010.13 and 107,912.50 is: 148,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,556.53 : 274,010.13 = 107,912.50 : x
  2. Step 2: Convert to fraction form
    198,556.53/274,010.13 = 107,912.50/x
  3. Step 3: Cross multiply
    198,556.53x = 274,010.13 × 107,912.50
  4. Step 4: Simplify right side
    198,556.53x = 29,569,118,153.63
  5. Step 5: Solve for x
    x = 29,569,118,153.63/198,556.53
  6. Step 6: Final answer
    x = 148,920.40

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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.