Home / 263,131.12-394,745.36-83,261.80

Finding the Fourth Proportional to 263,131.12, 394,745.36 and 83,261.80

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Solution

The fourth proportional to 263,131.12, 394,745.36 and 83,261.80 is: 124,908.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,131.12 : 394,745.36 = 83,261.80 : x
  2. Step 2: Convert to fraction form
    263,131.12/394,745.36 = 83,261.80/x
  3. Step 3: Cross multiply
    263,131.12x = 394,745.36 × 83,261.80
  4. Step 4: Simplify right side
    263,131.12x = 32,867,209,215.25
  5. Step 5: Solve for x
    x = 32,867,209,215.25/263,131.12
  6. Step 6: Final answer
    x = 124,908.10

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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.