Home / 140.24-211.13-123.23

Finding the Fourth Proportional to 140.24, 211.13 and 123.23

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Solution

The fourth proportional to 140.24, 211.13 and 123.23 is: 185.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    140.24 : 211.13 = 123.23 : x
  2. Step 2: Convert to fraction form
    140.24/211.13 = 123.23/x
  3. Step 3: Cross multiply
    140.24x = 211.13 × 123.23
  4. Step 4: Simplify right side
    140.24x = 26,016.80
  5. Step 5: Solve for x
    x = 26,016.80/140.24
  6. Step 6: Final answer
    x = 185.52

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.