Home / 204,499.94-306,791.37-86,171.22

Finding the Fourth Proportional to 204,499.94, 306,791.37 and 86,171.22

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Solution

The fourth proportional to 204,499.94, 306,791.37 and 86,171.22 is: 129,274.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,499.94 : 306,791.37 = 86,171.22 : x
  2. Step 2: Convert to fraction form
    204,499.94/306,791.37 = 86,171.22/x
  3. Step 3: Cross multiply
    204,499.94x = 306,791.37 × 86,171.22
  4. Step 4: Simplify right side
    204,499.94x = 26,436,586,638.37
  5. Step 5: Solve for x
    x = 26,436,586,638.37/204,499.94
  6. Step 6: Final answer
    x = 129,274.30

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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.