Home / 214,099.06-321,193.68-80,976.40

Finding the Fourth Proportional to 214,099.06, 321,193.68 and 80,976.40

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Solution

The fourth proportional to 214,099.06, 321,193.68 and 80,976.40 is: 121,481.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,099.06 : 321,193.68 = 80,976.40 : x
  2. Step 2: Convert to fraction form
    214,099.06/321,193.68 = 80,976.40/x
  3. Step 3: Cross multiply
    214,099.06x = 321,193.68 × 80,976.40
  4. Step 4: Simplify right side
    214,099.06x = 26,009,107,909.15
  5. Step 5: Solve for x
    x = 26,009,107,909.15/214,099.06
  6. Step 6: Final answer
    x = 121,481.65

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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.