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Finding the Fourth Proportional to 89.25, 123.17 and 60.16

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Solution

The fourth proportional to 89.25, 123.17 and 60.16 is: 83.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    89.25 : 123.17 = 60.16 : x
  2. Step 2: Convert to fraction form
    89.25/123.17 = 60.16/x
  3. Step 3: Cross multiply
    89.25x = 123.17 × 60.16
  4. Step 4: Simplify right side
    89.25x = 7,409.91
  5. Step 5: Solve for x
    x = 7,409.91/89.25
  6. Step 6: Final answer
    x = 83.02

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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.