Home / 214,635.57-321,953.09-81,515.58

Finding the Fourth Proportional to 214,635.57, 321,953.09 and 81,515.58

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Solution

The fourth proportional to 214,635.57, 321,953.09 and 81,515.58 is: 122,273.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,635.57 : 321,953.09 = 81,515.58 : x
  2. Step 2: Convert to fraction form
    214,635.57/321,953.09 = 81,515.58/x
  3. Step 3: Cross multiply
    214,635.57x = 321,953.09 × 81,515.58
  4. Step 4: Simplify right side
    214,635.57x = 26,244,192,456.56
  5. Step 5: Solve for x
    x = 26,244,192,456.56/214,635.57
  6. Step 6: Final answer
    x = 122,273.27

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1.5x scale

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.