Home / 198,966.78-274,579.47-108,326.57

Finding the Fourth Proportional to 198,966.78, 274,579.47 and 108,326.57

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Solution

The fourth proportional to 198,966.78, 274,579.47 and 108,326.57 is: 149,493.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,966.78 : 274,579.47 = 108,326.57 : x
  2. Step 2: Convert to fraction form
    198,966.78/274,579.47 = 108,326.57/x
  3. Step 3: Cross multiply
    198,966.78x = 274,579.47 × 108,326.57
  4. Step 4: Simplify right side
    198,966.78x = 29,744,250,804.62
  5. Step 5: Solve for x
    x = 29,744,250,804.62/198,966.78
  6. Step 6: Final answer
    x = 149,493.55

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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.