Home / 214,200.25-321,345.48-81,077.56

Finding the Fourth Proportional to 214,200.25, 321,345.48 and 81,077.56

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Solution

The fourth proportional to 214,200.25, 321,345.48 and 81,077.56 is: 121,633.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,200.25 : 321,345.48 = 81,077.56 : x
  2. Step 2: Convert to fraction form
    214,200.25/321,345.48 = 81,077.56/x
  3. Step 3: Cross multiply
    214,200.25x = 321,345.48 × 81,077.56
  4. Step 4: Simplify right side
    214,200.25x = 26,053,906,480.04
  5. Step 5: Solve for x
    x = 26,053,906,480.04/214,200.25
  6. Step 6: Final answer
    x = 121,633.41

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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.