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Finding the Fourth Proportional to 119.41, 163.84 and 116.34

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Solution

The fourth proportional to 119.41, 163.84 and 116.34 is: 159.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    119.41 : 163.84 = 116.34 : x
  2. Step 2: Convert to fraction form
    119.41/163.84 = 116.34/x
  3. Step 3: Cross multiply
    119.41x = 163.84 × 116.34
  4. Step 4: Simplify right side
    119.41x = 19,061.15
  5. Step 5: Solve for x
    x = 19,061.15/119.41
  6. Step 6: Final answer
    x = 159.63

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.