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Finding the Fourth Proportional to 125.95, 189.37 and 110.02

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Solution

The fourth proportional to 125.95, 189.37 and 110.02 is: 165.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    125.95 : 189.37 = 110.02 : x
  2. Step 2: Convert to fraction form
    125.95/189.37 = 110.02/x
  3. Step 3: Cross multiply
    125.95x = 189.37 × 110.02
  4. Step 4: Simplify right side
    125.95x = 20,834.49
  5. Step 5: Solve for x
    x = 20,834.49/125.95
  6. Step 6: Final answer
    x = 165.42

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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.