Home / 123,443.43-170,351.78-66,855.03

Finding the Fourth Proportional to 123,443.43, 170,351.78 and 66,855.03

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Solution

The fourth proportional to 123,443.43, 170,351.78 and 66,855.03 is: 92,259.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,443.43 : 170,351.78 = 66,855.03 : x
  2. Step 2: Convert to fraction form
    123,443.43/170,351.78 = 66,855.03/x
  3. Step 3: Cross multiply
    123,443.43x = 170,351.78 × 66,855.03
  4. Step 4: Simplify right side
    123,443.43x = 11,388,873,028.18
  5. Step 5: Solve for x
    x = 11,388,873,028.18/123,443.43
  6. Step 6: Final answer
    x = 92,259.86

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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.