Home / 149,407.20-206,181.88-82,339.20

Finding the Fourth Proportional to 149,407.20, 206,181.88 and 82,339.20

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Solution

The fourth proportional to 149,407.20, 206,181.88 and 82,339.20 is: 113,628.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,407.20 : 206,181.88 = 82,339.20 : x
  2. Step 2: Convert to fraction form
    149,407.20/206,181.88 = 82,339.20/x
  3. Step 3: Cross multiply
    149,407.20x = 206,181.88 × 82,339.20
  4. Step 4: Simplify right side
    149,407.20x = 16,976,850,847.85
  5. Step 5: Solve for x
    x = 16,976,850,847.85/149,407.20
  6. Step 6: Final answer
    x = 113,628.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.