Home / 198,974.92-274,583.74-108,330.70

Finding the Fourth Proportional to 198,974.92, 274,583.74 and 108,330.70

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Solution

The fourth proportional to 198,974.92, 274,583.74 and 108,330.70 is: 149,495.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,974.92 : 274,583.74 = 108,330.70 : x
  2. Step 2: Convert to fraction form
    198,974.92/274,583.74 = 108,330.70/x
  3. Step 3: Cross multiply
    198,974.92x = 274,583.74 × 108,330.70
  4. Step 4: Simplify right side
    198,974.92x = 29,745,848,762.82
  5. Step 5: Solve for x
    x = 29,745,848,762.82/198,974.92
  6. Step 6: Final answer
    x = 149,495.47

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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.