Home / 149,279.45-206,005.62-82,211.45

Finding the Fourth Proportional to 149,279.45, 206,005.62 and 82,211.45

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Solution

The fourth proportional to 149,279.45, 206,005.62 and 82,211.45 is: 113,451.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,279.45 : 206,005.62 = 82,211.45 : x
  2. Step 2: Convert to fraction form
    149,279.45/206,005.62 = 82,211.45/x
  3. Step 3: Cross multiply
    149,279.45x = 206,005.62 × 82,211.45
  4. Step 4: Simplify right side
    149,279.45x = 16,936,019,698.32
  5. Step 5: Solve for x
    x = 16,936,019,698.32/149,279.45
  6. Step 6: Final answer
    x = 113,451.79

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1.5x scale

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.