Home / 153,979.30-230,839.35-80,107.30

Finding the Fourth Proportional to 153,979.30, 230,839.35 and 80,107.30

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Solution

The fourth proportional to 153,979.30, 230,839.35 and 80,107.30 is: 120,093.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,979.30 : 230,839.35 = 80,107.30 : x
  2. Step 2: Convert to fraction form
    153,979.30/230,839.35 = 80,107.30/x
  3. Step 3: Cross multiply
    153,979.30x = 230,839.35 × 80,107.30
  4. Step 4: Simplify right side
    153,979.30x = 18,491,917,062.26
  5. Step 5: Solve for x
    x = 18,491,917,062.26/153,979.30
  6. Step 6: Final answer
    x = 120,093.53

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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.