Home / 137,815.20-206,832.96-71,274.42

Finding the Fourth Proportional to 137,815.20, 206,832.96 and 71,274.42

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Solution

The fourth proportional to 137,815.20, 206,832.96 and 71,274.42 is: 106,968.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,815.20 : 206,832.96 = 71,274.42 : x
  2. Step 2: Convert to fraction form
    137,815.20/206,832.96 = 71,274.42/x
  3. Step 3: Cross multiply
    137,815.20x = 206,832.96 × 71,274.42
  4. Step 4: Simplify right side
    137,815.20x = 14,741,899,260.88
  5. Step 5: Solve for x
    x = 14,741,899,260.88/137,815.20
  6. Step 6: Final answer
    x = 106,968.60

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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.