Home / 196,339.26-270,942.12-115,771.80

Finding the Fourth Proportional to 196,339.26, 270,942.12 and 115,771.80

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Solution

The fourth proportional to 196,339.26, 270,942.12 and 115,771.80 is: 159,761.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,339.26 : 270,942.12 = 115,771.80 : x
  2. Step 2: Convert to fraction form
    196,339.26/270,942.12 = 115,771.80/x
  3. Step 3: Cross multiply
    196,339.26x = 270,942.12 × 115,771.80
  4. Step 4: Simplify right side
    196,339.26x = 31,367,456,928.22
  5. Step 5: Solve for x
    x = 31,367,456,928.22/196,339.26
  6. Step 6: Final answer
    x = 159,761.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.