Home / 140,786.54-194,236.86-80,313.56

Finding the Fourth Proportional to 140,786.54, 194,236.86 and 80,313.56

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Solution

The fourth proportional to 140,786.54, 194,236.86 and 80,313.56 is: 110,805.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,786.54 : 194,236.86 = 80,313.56 : x
  2. Step 2: Convert to fraction form
    140,786.54/194,236.86 = 80,313.56/x
  3. Step 3: Cross multiply
    140,786.54x = 194,236.86 × 80,313.56
  4. Step 4: Simplify right side
    140,786.54x = 15,599,853,709.82
  5. Step 5: Solve for x
    x = 15,599,853,709.82/140,786.54
  6. Step 6: Final answer
    x = 110,805.01

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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.