Home / 214,067.80-321,100.62-54,143.74

Finding the Fourth Proportional to 214,067.80, 321,100.62 and 54,143.74

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Solution

The fourth proportional to 214,067.80, 321,100.62 and 54,143.74 is: 81,215.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,067.80 : 321,100.62 = 54,143.74 : x
  2. Step 2: Convert to fraction form
    214,067.80/321,100.62 = 54,143.74/x
  3. Step 3: Cross multiply
    214,067.80x = 321,100.62 × 54,143.74
  4. Step 4: Simplify right side
    214,067.80x = 17,385,588,483.12
  5. Step 5: Solve for x
    x = 17,385,588,483.12/214,067.80
  6. Step 6: Final answer
    x = 81,215.34

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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.