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Finding the Fourth Proportional to 124.24, 185.09 and 118.44

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Solution

The fourth proportional to 124.24, 185.09 and 118.44 is: 176.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.24 : 185.09 = 118.44 : x
  2. Step 2: Convert to fraction form
    124.24/185.09 = 118.44/x
  3. Step 3: Cross multiply
    124.24x = 185.09 × 118.44
  4. Step 4: Simplify right side
    124.24x = 21,922.06
  5. Step 5: Solve for x
    x = 21,922.06/124.24
  6. Step 6: Final answer
    x = 176.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.