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Finding the Fourth Proportional to 114.70, 171.34 and 114.16

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Solution

The fourth proportional to 114.70, 171.34 and 114.16 is: 170.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.70 : 171.34 = 114.16 : x
  2. Step 2: Convert to fraction form
    114.70/171.34 = 114.16/x
  3. Step 3: Cross multiply
    114.70x = 171.34 × 114.16
  4. Step 4: Simplify right side
    114.70x = 19,560.17
  5. Step 5: Solve for x
    x = 19,560.17/114.70
  6. Step 6: Final answer
    x = 170.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.