Home / 131,481.94-181,333.30-111,163.08

Finding the Fourth Proportional to 131,481.94, 181,333.30 and 111,163.08

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Solution

The fourth proportional to 131,481.94, 181,333.30 and 111,163.08 is: 153,310.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,481.94 : 181,333.30 = 111,163.08 : x
  2. Step 2: Convert to fraction form
    131,481.94/181,333.30 = 111,163.08/x
  3. Step 3: Cross multiply
    131,481.94x = 181,333.30 × 111,163.08
  4. Step 4: Simplify right side
    131,481.94x = 20,157,568,134.56
  5. Step 5: Solve for x
    x = 20,157,568,134.56/131,481.94
  6. Step 6: Final answer
    x = 153,310.55

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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.