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Finding the Fourth Proportional to 123.16, 183.73 and 114.52

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Solution

The fourth proportional to 123.16, 183.73 and 114.52 is: 170.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    123.16 : 183.73 = 114.52 : x
  2. Step 2: Convert to fraction form
    123.16/183.73 = 114.52/x
  3. Step 3: Cross multiply
    123.16x = 183.73 × 114.52
  4. Step 4: Simplify right side
    123.16x = 21,040.76
  5. Step 5: Solve for x
    x = 21,040.76/123.16
  6. Step 6: Final answer
    x = 170.84

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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.