Home / 220,872.94-331,340.73-71,078.43

Finding the Fourth Proportional to 220,872.94, 331,340.73 and 71,078.43

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Solution

The fourth proportional to 220,872.94, 331,340.73 and 71,078.43 is: 106,627.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,872.94 : 331,340.73 = 71,078.43 : x
  2. Step 2: Convert to fraction form
    220,872.94/331,340.73 = 71,078.43/x
  3. Step 3: Cross multiply
    220,872.94x = 331,340.73 × 71,078.43
  4. Step 4: Simplify right side
    220,872.94x = 23,551,178,883.45
  5. Step 5: Solve for x
    x = 23,551,178,883.45/220,872.94
  6. Step 6: Final answer
    x = 106,627.72

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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.