Home / 204,084.72-305,665.44-109,147.20

Finding the Fourth Proportional to 204,084.72, 305,665.44 and 109,147.20

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Solution

The fourth proportional to 204,084.72, 305,665.44 and 109,147.20 is: 163,473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,084.72 : 305,665.44 = 109,147.20 : x
  2. Step 2: Convert to fraction form
    204,084.72/305,665.44 = 109,147.20/x
  3. Step 3: Cross multiply
    204,084.72x = 305,665.44 × 109,147.20
  4. Step 4: Simplify right side
    204,084.72x = 33,362,526,912.77
  5. Step 5: Solve for x
    x = 33,362,526,912.77/204,084.72
  6. Step 6: Final answer
    x = 163,473.91

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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.