Home / 214,108.26-321,227.28-81,029.40

Finding the Fourth Proportional to 214,108.26, 321,227.28 and 81,029.40

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Solution

The fourth proportional to 214,108.26, 321,227.28 and 81,029.40 is: 121,568.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,108.26 : 321,227.28 = 81,029.40 : x
  2. Step 2: Convert to fraction form
    214,108.26/321,227.28 = 81,029.40/x
  3. Step 3: Cross multiply
    214,108.26x = 321,227.28 × 81,029.40
  4. Step 4: Simplify right side
    214,108.26x = 26,028,853,762.03
  5. Step 5: Solve for x
    x = 26,028,853,762.03/214,108.26
  6. Step 6: Final answer
    x = 121,568.66

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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.