Home / 198,588.97-274,115.47-126,969.27

Finding the Fourth Proportional to 198,588.97, 274,115.47 and 126,969.27

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Solution

The fourth proportional to 198,588.97, 274,115.47 and 126,969.27 is: 175,257.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,588.97 : 274,115.47 = 126,969.27 : x
  2. Step 2: Convert to fraction form
    198,588.97/274,115.47 = 126,969.27/x
  3. Step 3: Cross multiply
    198,588.97x = 274,115.47 × 126,969.27
  4. Step 4: Simplify right side
    198,588.97x = 34,804,241,199.12
  5. Step 5: Solve for x
    x = 34,804,241,199.12/198,588.97
  6. Step 6: Final answer
    x = 175,257.68

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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.