Home / 198,131.08-273,421.38-113,297.80

Finding the Fourth Proportional to 198,131.08, 273,421.38 and 113,297.80

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Solution

The fourth proportional to 198,131.08, 273,421.38 and 113,297.80 is: 156,351.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,131.08 : 273,421.38 = 113,297.80 : x
  2. Step 2: Convert to fraction form
    198,131.08/273,421.38 = 113,297.80/x
  3. Step 3: Cross multiply
    198,131.08x = 273,421.38 × 113,297.80
  4. Step 4: Simplify right side
    198,131.08x = 30,978,040,826.96
  5. Step 5: Solve for x
    x = 30,978,040,826.96/198,131.08
  6. Step 6: Final answer
    x = 156,351.24

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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.