Home / 198,556.03-274,009.44-107,912

Finding the Fourth Proportional to 198,556.03, 274,009.44 and 107,912

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Solution

The fourth proportional to 198,556.03, 274,009.44 and 107,912 is: 148,919.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,556.03 : 274,009.44 = 107,912 : x
  2. Step 2: Convert to fraction form
    198,556.03/274,009.44 = 107,912/x
  3. Step 3: Cross multiply
    198,556.03x = 274,009.44 × 107,912
  4. Step 4: Simplify right side
    198,556.03x = 29,568,906,689.28
  5. Step 5: Solve for x
    x = 29,568,906,689.28/198,556.03
  6. Step 6: Final answer
    x = 148,919.71

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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.