Home / 149,647.25-206,514.41-81,664.76

Finding the Fourth Proportional to 149,647.25, 206,514.41 and 81,664.76

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Solution

The fourth proportional to 149,647.25, 206,514.41 and 81,664.76 is: 112,698.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,647.25 : 206,514.41 = 81,664.76 : x
  2. Step 2: Convert to fraction form
    149,647.25/206,514.41 = 81,664.76/x
  3. Step 3: Cross multiply
    149,647.25x = 206,514.41 × 81,664.76
  4. Step 4: Simplify right side
    149,647.25x = 16,864,948,288.30
  5. Step 5: Solve for x
    x = 16,864,948,288.30/149,647.25
  6. Step 6: Final answer
    x = 112,698.02

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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.