Home / 198,619.66-274,091.89-107,977.92

Finding the Fourth Proportional to 198,619.66, 274,091.89 and 107,977.92

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Solution

The fourth proportional to 198,619.66, 274,091.89 and 107,977.92 is: 149,007.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,619.66 : 274,091.89 = 107,977.92 : x
  2. Step 2: Convert to fraction form
    198,619.66/274,091.89 = 107,977.92/x
  3. Step 3: Cross multiply
    198,619.66x = 274,091.89 × 107,977.92
  4. Step 4: Simplify right side
    198,619.66x = 29,595,872,851.10
  5. Step 5: Solve for x
    x = 29,595,872,851.10/198,619.66
  6. Step 6: Final answer
    x = 149,007.77

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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.