Home / 198,719.09-274,229.70-108,073.11

Finding the Fourth Proportional to 198,719.09, 274,229.70 and 108,073.11

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Solution

The fourth proportional to 198,719.09, 274,229.70 and 108,073.11 is: 149,139.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,719.09 : 274,229.70 = 108,073.11 : x
  2. Step 2: Convert to fraction form
    198,719.09/274,229.70 = 108,073.11/x
  3. Step 3: Cross multiply
    198,719.09x = 274,229.70 × 108,073.11
  4. Step 4: Simplify right side
    198,719.09x = 29,636,856,533.37
  5. Step 5: Solve for x
    x = 29,636,856,533.37/198,719.09
  6. Step 6: Final answer
    x = 149,139.46

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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.