Home / 137,676.32-206,589.60-53,439.80

Finding the Fourth Proportional to 137,676.32, 206,589.60 and 53,439.80

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Solution

The fourth proportional to 137,676.32, 206,589.60 and 53,439.80 is: 80,188.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,676.32 : 206,589.60 = 53,439.80 : x
  2. Step 2: Convert to fraction form
    137,676.32/206,589.60 = 53,439.80/x
  3. Step 3: Cross multiply
    137,676.32x = 206,589.60 × 53,439.80
  4. Step 4: Simplify right side
    137,676.32x = 11,040,106,906.08
  5. Step 5: Solve for x
    x = 11,040,106,906.08/137,676.32
  6. Step 6: Final answer
    x = 80,188.86

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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.