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Finding the Fourth Proportional to 88.57, 122.16 and 60.95

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Solution

The fourth proportional to 88.57, 122.16 and 60.95 is: 84.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.57 : 122.16 = 60.95 : x
  2. Step 2: Convert to fraction form
    88.57/122.16 = 60.95/x
  3. Step 3: Cross multiply
    88.57x = 122.16 × 60.95
  4. Step 4: Simplify right side
    88.57x = 7,445.84
  5. Step 5: Solve for x
    x = 7,445.84/88.57
  6. Step 6: Final answer
    x = 84.07

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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.