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Finding the Fourth Proportional to 110.10, 152.13 and 80.94

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Solution

The fourth proportional to 110.10, 152.13 and 80.94 is: 111.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.10 : 152.13 = 80.94 : x
  2. Step 2: Convert to fraction form
    110.10/152.13 = 80.94/x
  3. Step 3: Cross multiply
    110.10x = 152.13 × 80.94
  4. Step 4: Simplify right side
    110.10x = 12,313.40
  5. Step 5: Solve for x
    x = 12,313.40/110.10
  6. Step 6: Final answer
    x = 111.84

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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.