Home / 214,190.66-321,289.32-81,133.58

Finding the Fourth Proportional to 214,190.66, 321,289.32 and 81,133.58

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Solution

The fourth proportional to 214,190.66, 321,289.32 and 81,133.58 is: 121,701.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,190.66 : 321,289.32 = 81,133.58 : x
  2. Step 2: Convert to fraction form
    214,190.66/321,289.32 = 81,133.58/x
  3. Step 3: Cross multiply
    214,190.66x = 321,289.32 × 81,133.58
  4. Step 4: Simplify right side
    214,190.66x = 26,067,352,747.37
  5. Step 5: Solve for x
    x = 26,067,352,747.37/214,190.66
  6. Step 6: Final answer
    x = 121,701.63

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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.