Home / 204,138.78-306,270.42-104,369.03

Finding the Fourth Proportional to 204,138.78, 306,270.42 and 104,369.03

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Solution

The fourth proportional to 204,138.78, 306,270.42 and 104,369.03 is: 156,585.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,138.78 : 306,270.42 = 104,369.03 : x
  2. Step 2: Convert to fraction form
    204,138.78/306,270.42 = 104,369.03/x
  3. Step 3: Cross multiply
    204,138.78x = 306,270.42 × 104,369.03
  4. Step 4: Simplify right side
    204,138.78x = 31,965,146,740.26
  5. Step 5: Solve for x
    x = 31,965,146,740.26/204,138.78
  6. Step 6: Final answer
    x = 156,585.37

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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.