Home / 214,451.20-321,619.20-89,766.40

Finding the Fourth Proportional to 214,451.20, 321,619.20 and 89,766.40

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Solution

The fourth proportional to 214,451.20, 321,619.20 and 89,766.40 is: 134,625.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,451.20 : 321,619.20 = 89,766.40 : x
  2. Step 2: Convert to fraction form
    214,451.20/321,619.20 = 89,766.40/x
  3. Step 3: Cross multiply
    214,451.20x = 321,619.20 × 89,766.40
  4. Step 4: Simplify right side
    214,451.20x = 28,870,597,754.88
  5. Step 5: Solve for x
    x = 28,870,597,754.88/214,451.20
  6. Step 6: Final answer
    x = 134,625.49

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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.