Home / 198,783.68-274,331.04-113,900.96

Finding the Fourth Proportional to 198,783.68, 274,331.04 and 113,900.96

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Solution

The fourth proportional to 198,783.68, 274,331.04 and 113,900.96 is: 157,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,783.68 : 274,331.04 = 113,900.96 : x
  2. Step 2: Convert to fraction form
    198,783.68/274,331.04 = 113,900.96/x
  3. Step 3: Cross multiply
    198,783.68x = 274,331.04 × 113,900.96
  4. Step 4: Simplify right side
    198,783.68x = 31,246,568,813.80
  5. Step 5: Solve for x
    x = 31,246,568,813.80/198,783.68
  6. Step 6: Final answer
    x = 157,188.80

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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.