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Finding the Fourth Proportional to 144.99, 199.61 and 124.23

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Solution

The fourth proportional to 144.99, 199.61 and 124.23 is: 171.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    144.99 : 199.61 = 124.23 : x
  2. Step 2: Convert to fraction form
    144.99/199.61 = 124.23/x
  3. Step 3: Cross multiply
    144.99x = 199.61 × 124.23
  4. Step 4: Simplify right side
    144.99x = 24,798.84
  5. Step 5: Solve for x
    x = 24,798.84/144.99
  6. Step 6: Final answer
    x = 171.04

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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.