Home / 214,062.15-321,158.01-80,983.20

Finding the Fourth Proportional to 214,062.15, 321,158.01 and 80,983.20

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Solution

The fourth proportional to 214,062.15, 321,158.01 and 80,983.20 is: 121,499.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,062.15 : 321,158.01 = 80,983.20 : x
  2. Step 2: Convert to fraction form
    214,062.15/321,158.01 = 80,983.20/x
  3. Step 3: Cross multiply
    214,062.15x = 321,158.01 × 80,983.20
  4. Step 4: Simplify right side
    214,062.15x = 26,008,403,355.43
  5. Step 5: Solve for x
    x = 26,008,403,355.43/214,062.15
  6. Step 6: Final answer
    x = 121,499.31

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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.