Home / 198,860.76-274,427.88-109,436.76

Finding the Fourth Proportional to 198,860.76, 274,427.88 and 109,436.76

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Solution

The fourth proportional to 198,860.76, 274,427.88 and 109,436.76 is: 151,022.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,860.76 : 274,427.88 = 109,436.76 : x
  2. Step 2: Convert to fraction form
    198,860.76/274,427.88 = 109,436.76/x
  3. Step 3: Cross multiply
    198,860.76x = 274,427.88 × 109,436.76
  4. Step 4: Simplify right side
    198,860.76x = 30,032,498,040.87
  5. Step 5: Solve for x
    x = 30,032,498,040.87/198,860.76
  6. Step 6: Final answer
    x = 151,022.75

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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.