Home / 131,481.44-181,332.61-111,162.58

Finding the Fourth Proportional to 131,481.44, 181,332.61 and 111,162.58

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Solution

The fourth proportional to 131,481.44, 181,332.61 and 111,162.58 is: 153,309.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,481.44 : 181,332.61 = 111,162.58 : x
  2. Step 2: Convert to fraction form
    131,481.44/181,332.61 = 111,162.58/x
  3. Step 3: Cross multiply
    131,481.44x = 181,332.61 × 111,162.58
  4. Step 4: Simplify right side
    131,481.44x = 20,157,400,765.73
  5. Step 5: Solve for x
    x = 20,157,400,765.73/131,481.44
  6. Step 6: Final answer
    x = 153,309.86

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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.