Home / 198,555.38-274,008.54-107,911.35

Finding the Fourth Proportional to 198,555.38, 274,008.54 and 107,911.35

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Solution

The fourth proportional to 198,555.38, 274,008.54 and 107,911.35 is: 148,918.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,555.38 : 274,008.54 = 107,911.35 : x
  2. Step 2: Convert to fraction form
    198,555.38/274,008.54 = 107,911.35/x
  3. Step 3: Cross multiply
    198,555.38x = 274,008.54 × 107,911.35
  4. Step 4: Simplify right side
    198,555.38x = 29,568,631,462.93
  5. Step 5: Solve for x
    x = 29,568,631,462.93/198,555.38
  6. Step 6: Final answer
    x = 148,918.81

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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.