Home / 126,764.42-189,873.25-119,311.78

Finding the Fourth Proportional to 126,764.42, 189,873.25 and 119,311.78

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Solution

The fourth proportional to 126,764.42, 189,873.25 and 119,311.78 is: 178,710.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,764.42 : 189,873.25 = 119,311.78 : x
  2. Step 2: Convert to fraction form
    126,764.42/189,873.25 = 119,311.78/x
  3. Step 3: Cross multiply
    126,764.42x = 189,873.25 × 119,311.78
  4. Step 4: Simplify right side
    126,764.42x = 22,654,115,431.89
  5. Step 5: Solve for x
    x = 22,654,115,431.89/126,764.42
  6. Step 6: Final answer
    x = 178,710.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.