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Finding the Fourth Proportional to 158,850.66, 238,206 and 74,634.78

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Solution

The fourth proportional to 158,850.66, 238,206 and 74,634.78 is: 111,919.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,850.66 : 238,206 = 74,634.78 : x
  2. Step 2: Convert to fraction form
    158,850.66/238,206 = 74,634.78/x
  3. Step 3: Cross multiply
    158,850.66x = 238,206 × 74,634.78
  4. Step 4: Simplify right side
    158,850.66x = 17,778,452,404.68
  5. Step 5: Solve for x
    x = 17,778,452,404.68/158,850.66
  6. Step 6: Final answer
    x = 111,919.29

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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.