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Finding the Fourth Proportional to 125.80, 173.63 and 73.33

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Solution

The fourth proportional to 125.80, 173.63 and 73.33 is: 101.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125.80 : 173.63 = 73.33 : x
  2. Step 2: Convert to fraction form
    125.80/173.63 = 73.33/x
  3. Step 3: Cross multiply
    125.80x = 173.63 × 73.33
  4. Step 4: Simplify right side
    125.80x = 12,732.29
  5. Step 5: Solve for x
    x = 12,732.29/125.80
  6. Step 6: Final answer
    x = 101.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.