Home / 214,619.10-321,669.45-109,383.90

Finding the Fourth Proportional to 214,619.10, 321,669.45 and 109,383.90

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Solution

The fourth proportional to 214,619.10, 321,669.45 and 109,383.90 is: 163,943.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,619.10 : 321,669.45 = 109,383.90 : x
  2. Step 2: Convert to fraction form
    214,619.10/321,669.45 = 109,383.90/x
  3. Step 3: Cross multiply
    214,619.10x = 321,669.45 × 109,383.90
  4. Step 4: Simplify right side
    214,619.10x = 35,185,458,951.86
  5. Step 5: Solve for x
    x = 35,185,458,951.86/214,619.10
  6. Step 6: Final answer
    x = 163,943.74

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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.