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Finding the Fourth Proportional to 116.68, 174.66 and 73.84

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Solution

The fourth proportional to 116.68, 174.66 and 73.84 is: 110.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.68 : 174.66 = 73.84 : x
  2. Step 2: Convert to fraction form
    116.68/174.66 = 73.84/x
  3. Step 3: Cross multiply
    116.68x = 174.66 × 73.84
  4. Step 4: Simplify right side
    116.68x = 12,896.89
  5. Step 5: Solve for x
    x = 12,896.89/116.68
  6. Step 6: Final answer
    x = 110.53

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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.