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Finding the Fourth Proportional to 124.36, 185.43 and 124.12

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Solution

The fourth proportional to 124.36, 185.43 and 124.12 is: 185.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.36 : 185.43 = 124.12 : x
  2. Step 2: Convert to fraction form
    124.36/185.43 = 124.12/x
  3. Step 3: Cross multiply
    124.36x = 185.43 × 124.12
  4. Step 4: Simplify right side
    124.36x = 23,015.57
  5. Step 5: Solve for x
    x = 23,015.57/124.36
  6. Step 6: Final answer
    x = 185.07

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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.