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Finding the Fourth Proportional to 156.62, 234.93 and 92.64

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Solution

The fourth proportional to 156.62, 234.93 and 92.64 is: 138.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    156.62 : 234.93 = 92.64 : x
  2. Step 2: Convert to fraction form
    156.62/234.93 = 92.64/x
  3. Step 3: Cross multiply
    156.62x = 234.93 × 92.64
  4. Step 4: Simplify right side
    156.62x = 21,763.92
  5. Step 5: Solve for x
    x = 21,763.92/156.62
  6. Step 6: Final answer
    x = 138.96

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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.