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Finding the Fourth Proportional to 131.95, 181.89 and 92.48

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Solution

The fourth proportional to 131.95, 181.89 and 92.48 is: 127.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131.95 : 181.89 = 92.48 : x
  2. Step 2: Convert to fraction form
    131.95/181.89 = 92.48/x
  3. Step 3: Cross multiply
    131.95x = 181.89 × 92.48
  4. Step 4: Simplify right side
    131.95x = 16,821.42
  5. Step 5: Solve for x
    x = 16,821.42/131.95
  6. Step 6: Final answer
    x = 127.49

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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.