Home / 214,256.61-321,338.78-87,772.83

Finding the Fourth Proportional to 214,256.61, 321,338.78 and 87,772.83

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Solution

The fourth proportional to 214,256.61, 321,338.78 and 87,772.83 is: 131,640.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,256.61 : 321,338.78 = 87,772.83 : x
  2. Step 2: Convert to fraction form
    214,256.61/321,338.78 = 87,772.83/x
  3. Step 3: Cross multiply
    214,256.61x = 321,338.78 × 87,772.83
  4. Step 4: Simplify right side
    214,256.61x = 28,204,814,109.35
  5. Step 5: Solve for x
    x = 28,204,814,109.35/214,256.61
  6. Step 6: Final answer
    x = 131,640.35

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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.