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Finding the Fourth Proportional to 125.98, 189.22 and 97.23

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Solution

The fourth proportional to 125.98, 189.22 and 97.23 is: 146.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125.98 : 189.22 = 97.23 : x
  2. Step 2: Convert to fraction form
    125.98/189.22 = 97.23/x
  3. Step 3: Cross multiply
    125.98x = 189.22 × 97.23
  4. Step 4: Simplify right side
    125.98x = 18,396.67
  5. Step 5: Solve for x
    x = 18,396.67/125.98
  6. Step 6: Final answer
    x = 146.03

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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.