Home / 198,618.92-274,099.40-107,980.94

Finding the Fourth Proportional to 198,618.92, 274,099.40 and 107,980.94

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Solution

The fourth proportional to 198,618.92, 274,099.40 and 107,980.94 is: 149,016.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,618.92 : 274,099.40 = 107,980.94 : x
  2. Step 2: Convert to fraction form
    198,618.92/274,099.40 = 107,980.94/x
  3. Step 3: Cross multiply
    198,618.92x = 274,099.40 × 107,980.94
  4. Step 4: Simplify right side
    198,618.92x = 29,597,510,865.44
  5. Step 5: Solve for x
    x = 29,597,510,865.44/198,618.92
  6. Step 6: Final answer
    x = 149,016.57

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1.5x scale

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.