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Finding the Fourth Proportional to 125.11, 187.54 and 48.03

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Solution

The fourth proportional to 125.11, 187.54 and 48.03 is: 71.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    125.11 : 187.54 = 48.03 : x
  2. Step 2: Convert to fraction form
    125.11/187.54 = 48.03/x
  3. Step 3: Cross multiply
    125.11x = 187.54 × 48.03
  4. Step 4: Simplify right side
    125.11x = 9,006.72
  5. Step 5: Solve for x
    x = 9,006.72/125.11
  6. Step 6: Final answer
    x = 71.99

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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.