Home / 198,556.55-274,009.86-107,912.75

Finding the Fourth Proportional to 198,556.55, 274,009.86 and 107,912.75

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Solution

The fourth proportional to 198,556.55, 274,009.86 and 107,912.75 is: 148,920.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,556.55 : 274,009.86 = 107,912.75 : x
  2. Step 2: Convert to fraction form
    198,556.55/274,009.86 = 107,912.75/x
  3. Step 3: Cross multiply
    198,556.55x = 274,009.86 × 107,912.75
  4. Step 4: Simplify right side
    198,556.55x = 29,569,157,118.93
  5. Step 5: Solve for x
    x = 29,569,157,118.93/198,556.55
  6. Step 6: Final answer
    x = 148,920.58

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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.