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Finding the Fourth Proportional to 127.41, 176.69 and 124.08

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Solution

The fourth proportional to 127.41, 176.69 and 124.08 is: 172.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127.41 : 176.69 = 124.08 : x
  2. Step 2: Convert to fraction form
    127.41/176.69 = 124.08/x
  3. Step 3: Cross multiply
    127.41x = 176.69 × 124.08
  4. Step 4: Simplify right side
    127.41x = 21,923.07
  5. Step 5: Solve for x
    x = 21,923.07/127.41
  6. Step 6: Final answer
    x = 172.07

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.