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Finding the Fourth Proportional to 114.44, 157.84 and 83.36

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Solution

The fourth proportional to 114.44, 157.84 and 83.36 is: 114.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.44 : 157.84 = 83.36 : x
  2. Step 2: Convert to fraction form
    114.44/157.84 = 83.36/x
  3. Step 3: Cross multiply
    114.44x = 157.84 × 83.36
  4. Step 4: Simplify right side
    114.44x = 13,157.54
  5. Step 5: Solve for x
    x = 13,157.54/114.44
  6. Step 6: Final answer
    x = 114.97

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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.