Home / 213,723.79-321,167.27-113,954.47

Finding the Fourth Proportional to 213,723.79, 321,167.27 and 113,954.47

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Solution

The fourth proportional to 213,723.79, 321,167.27 and 113,954.47 is: 171,241.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,723.79 : 321,167.27 = 113,954.47 : x
  2. Step 2: Convert to fraction form
    213,723.79/321,167.27 = 113,954.47/x
  3. Step 3: Cross multiply
    213,723.79x = 321,167.27 × 113,954.47
  4. Step 4: Simplify right side
    213,723.79x = 36,598,446,034.20
  5. Step 5: Solve for x
    x = 36,598,446,034.20/213,723.79
  6. Step 6: Final answer
    x = 171,241.80

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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.