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Finding the Fourth Proportional to 148.42, 223.04 and 125.74

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Solution

The fourth proportional to 148.42, 223.04 and 125.74 is: 188.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    148.42 : 223.04 = 125.74 : x
  2. Step 2: Convert to fraction form
    148.42/223.04 = 125.74/x
  3. Step 3: Cross multiply
    148.42x = 223.04 × 125.74
  4. Step 4: Simplify right side
    148.42x = 28,045.05
  5. Step 5: Solve for x
    x = 28,045.05/148.42
  6. Step 6: Final answer
    x = 188.96

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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.