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Finding the Fourth Proportional to 125,622, 188,519.40 and 51,750

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Solution

The fourth proportional to 125,622, 188,519.40 and 51,750 is: 77,660.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,622 : 188,519.40 = 51,750 : x
  2. Step 2: Convert to fraction form
    125,622/188,519.40 = 51,750/x
  3. Step 3: Cross multiply
    125,622x = 188,519.40 × 51,750
  4. Step 4: Simplify right side
    125,622x = 9,755,878,950
  5. Step 5: Solve for x
    x = 9,755,878,950/125,622
  6. Step 6: Final answer
    x = 77,660.59

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.