Home / 214,314.60-321,350.40-81,199.20

Finding the Fourth Proportional to 214,314.60, 321,350.40 and 81,199.20

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Solution

The fourth proportional to 214,314.60, 321,350.40 and 81,199.20 is: 121,752.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,314.60 : 321,350.40 = 81,199.20 : x
  2. Step 2: Convert to fraction form
    214,314.60/321,350.40 = 81,199.20/x
  3. Step 3: Cross multiply
    214,314.60x = 321,350.40 × 81,199.20
  4. Step 4: Simplify right side
    214,314.60x = 26,093,395,399.68
  5. Step 5: Solve for x
    x = 26,093,395,399.68/214,314.60
  6. Step 6: Final answer
    x = 121,752.77

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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.