Home / 263,621.37-394,857.87-136,879.26

Finding the Fourth Proportional to 263,621.37, 394,857.87 and 136,879.26

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Solution

The fourth proportional to 263,621.37, 394,857.87 and 136,879.26 is: 205,020.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,621.37 : 394,857.87 = 136,879.26 : x
  2. Step 2: Convert to fraction form
    263,621.37/394,857.87 = 136,879.26/x
  3. Step 3: Cross multiply
    263,621.37x = 394,857.87 × 136,879.26
  4. Step 4: Simplify right side
    263,621.37x = 54,047,853,050.78
  5. Step 5: Solve for x
    x = 54,047,853,050.78/263,621.37
  6. Step 6: Final answer
    x = 205,020.76

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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.