Home / 255,986.62-383,936.16-68,954.38

Finding the Fourth Proportional to 255,986.62, 383,936.16 and 68,954.38

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Solution

The fourth proportional to 255,986.62, 383,936.16 and 68,954.38 is: 103,419.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,986.62 : 383,936.16 = 68,954.38 : x
  2. Step 2: Convert to fraction form
    255,986.62/383,936.16 = 68,954.38/x
  3. Step 3: Cross multiply
    255,986.62x = 383,936.16 × 68,954.38
  4. Step 4: Simplify right side
    255,986.62x = 26,474,079,872.38
  5. Step 5: Solve for x
    x = 26,474,079,872.38/255,986.62
  6. Step 6: Final answer
    x = 103,419.78

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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.