Home / 198,578.13-274,040.55-107,934.03

Finding the Fourth Proportional to 198,578.13, 274,040.55 and 107,934.03

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Solution

The fourth proportional to 198,578.13, 274,040.55 and 107,934.03 is: 148,950.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,578.13 : 274,040.55 = 107,934.03 : x
  2. Step 2: Convert to fraction form
    198,578.13/274,040.55 = 107,934.03/x
  3. Step 3: Cross multiply
    198,578.13x = 274,040.55 × 107,934.03
  4. Step 4: Simplify right side
    198,578.13x = 29,578,300,944.92
  5. Step 5: Solve for x
    x = 29,578,300,944.92/198,578.13
  6. Step 6: Final answer
    x = 148,950.45

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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.