Home / 262,724.59-394,142.26-85,217.79

Finding the Fourth Proportional to 262,724.59, 394,142.26 and 85,217.79

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Solution

The fourth proportional to 262,724.59, 394,142.26 and 85,217.79 is: 127,844.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,724.59 : 394,142.26 = 85,217.79 : x
  2. Step 2: Convert to fraction form
    262,724.59/394,142.26 = 85,217.79/x
  3. Step 3: Cross multiply
    262,724.59x = 394,142.26 × 85,217.79
  4. Step 4: Simplify right side
    262,724.59x = 33,587,932,342.81
  5. Step 5: Solve for x
    x = 33,587,932,342.81/262,724.59
  6. Step 6: Final answer
    x = 127,844.65

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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.