Home / 123,067.22-169,889.46-72,072.86

Finding the Fourth Proportional to 123,067.22, 169,889.46 and 72,072.86

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Solution

The fourth proportional to 123,067.22, 169,889.46 and 72,072.86 is: 99,493.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,067.22 : 169,889.46 = 72,072.86 : x
  2. Step 2: Convert to fraction form
    123,067.22/169,889.46 = 72,072.86/x
  3. Step 3: Cross multiply
    123,067.22x = 169,889.46 × 72,072.86
  4. Step 4: Simplify right side
    123,067.22x = 12,244,419,266.06
  5. Step 5: Solve for x
    x = 12,244,419,266.06/123,067.22
  6. Step 6: Final answer
    x = 99,493.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.