Home / 263,133.12-394,606.08-76,105.92

Finding the Fourth Proportional to 263,133.12, 394,606.08 and 76,105.92

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Solution

The fourth proportional to 263,133.12, 394,606.08 and 76,105.92 is: 114,131.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,133.12 : 394,606.08 = 76,105.92 : x
  2. Step 2: Convert to fraction form
    263,133.12/394,606.08 = 76,105.92/x
  3. Step 3: Cross multiply
    263,133.12x = 394,606.08 × 76,105.92
  4. Step 4: Simplify right side
    263,133.12x = 30,031,858,755.99
  5. Step 5: Solve for x
    x = 30,031,858,755.99/263,133.12
  6. Step 6: Final answer
    x = 114,131.81

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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.