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Finding the Fourth Proportional to 110.98, 166.63 and 56.92

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Solution

The fourth proportional to 110.98, 166.63 and 56.92 is: 85.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.98 : 166.63 = 56.92 : x
  2. Step 2: Convert to fraction form
    110.98/166.63 = 56.92/x
  3. Step 3: Cross multiply
    110.98x = 166.63 × 56.92
  4. Step 4: Simplify right side
    110.98x = 9,484.58
  5. Step 5: Solve for x
    x = 9,484.58/110.98
  6. Step 6: Final answer
    x = 85.46

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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.