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Finding the Fourth Proportional to 123,991.88, 171,112.34 and 75,596.62

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Solution

The fourth proportional to 123,991.88, 171,112.34 and 75,596.62 is: 104,325.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,991.88 : 171,112.34 = 75,596.62 : x
  2. Step 2: Convert to fraction form
    123,991.88/171,112.34 = 75,596.62/x
  3. Step 3: Cross multiply
    123,991.88x = 171,112.34 × 75,596.62
  4. Step 4: Simplify right side
    123,991.88x = 12,935,514,544.29
  5. Step 5: Solve for x
    x = 12,935,514,544.29/123,991.88
  6. Step 6: Final answer
    x = 104,325.50

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