Home / 204,078.34-306,120.62-77,725.60

Finding the Fourth Proportional to 204,078.34, 306,120.62 and 77,725.60

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Solution

The fourth proportional to 204,078.34, 306,120.62 and 77,725.60 is: 116,589.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,078.34 : 306,120.62 = 77,725.60 : x
  2. Step 2: Convert to fraction form
    204,078.34/306,120.62 = 77,725.60/x
  3. Step 3: Cross multiply
    204,078.34x = 306,120.62 × 77,725.60
  4. Step 4: Simplify right side
    204,078.34x = 23,793,406,942.64
  5. Step 5: Solve for x
    x = 23,793,406,942.64/204,078.34
  6. Step 6: Final answer
    x = 116,589.58

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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.