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Finding the Fourth Proportional to 113.99, 171.10 and 73.44

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Solution

The fourth proportional to 113.99, 171.10 and 73.44 is: 110.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    113.99 : 171.10 = 73.44 : x
  2. Step 2: Convert to fraction form
    113.99/171.10 = 73.44/x
  3. Step 3: Cross multiply
    113.99x = 171.10 × 73.44
  4. Step 4: Simplify right side
    113.99x = 12,565.40
  5. Step 5: Solve for x
    x = 12,565.40/113.99
  6. Step 6: Final answer
    x = 110.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.