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Finding the Fourth Proportional to 125.65, 173.24 and 92.34

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Solution

The fourth proportional to 125.65, 173.24 and 92.34 is: 127.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    125.65 : 173.24 = 92.34 : x
  2. Step 2: Convert to fraction form
    125.65/173.24 = 92.34/x
  3. Step 3: Cross multiply
    125.65x = 173.24 × 92.34
  4. Step 4: Simplify right side
    125.65x = 15,996.87
  5. Step 5: Solve for x
    x = 15,996.87/125.65
  6. Step 6: Final answer
    x = 127.31

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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.