Home / 204,078.09-306,120.24-77,725.35

Finding the Fourth Proportional to 204,078.09, 306,120.24 and 77,725.35

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Solution

The fourth proportional to 204,078.09, 306,120.24 and 77,725.35 is: 116,589.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,078.09 : 306,120.24 = 77,725.35 : x
  2. Step 2: Convert to fraction form
    204,078.09/306,120.24 = 77,725.35/x
  3. Step 3: Cross multiply
    204,078.09x = 306,120.24 × 77,725.35
  4. Step 4: Simplify right side
    204,078.09x = 23,793,302,796.08
  5. Step 5: Solve for x
    x = 23,793,302,796.08/204,078.09
  6. Step 6: Final answer
    x = 116,589.21

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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.