Home / 262,716.45-394,130.07-85,209.66

Finding the Fourth Proportional to 262,716.45, 394,130.07 and 85,209.66

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Solution

The fourth proportional to 262,716.45, 394,130.07 and 85,209.66 is: 127,832.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,716.45 : 394,130.07 = 85,209.66 : x
  2. Step 2: Convert to fraction form
    262,716.45/394,130.07 = 85,209.66/x
  3. Step 3: Cross multiply
    262,716.45x = 394,130.07 × 85,209.66
  4. Step 4: Simplify right side
    262,716.45x = 33,583,687,782.49
  5. Step 5: Solve for x
    x = 33,583,687,782.49/262,716.45
  6. Step 6: Final answer
    x = 127,832.45

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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.