Home / 196,310.80-270,910.20-111,429.28

Finding the Fourth Proportional to 196,310.80, 270,910.20 and 111,429.28

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Solution

The fourth proportional to 196,310.80, 270,910.20 and 111,429.28 is: 153,773.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,310.80 : 270,910.20 = 111,429.28 : x
  2. Step 2: Convert to fraction form
    196,310.80/270,910.20 = 111,429.28/x
  3. Step 3: Cross multiply
    196,310.80x = 270,910.20 × 111,429.28
  4. Step 4: Simplify right side
    196,310.80x = 30,187,328,530.66
  5. Step 5: Solve for x
    x = 30,187,328,530.66/196,310.80
  6. Step 6: Final answer
    x = 153,773.14

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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.