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Finding the Fourth Proportional to 99,028.44, 136,647 and 63,239.40

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Solution

The fourth proportional to 99,028.44, 136,647 and 63,239.40 is: 87,262.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,028.44 : 136,647 = 63,239.40 : x
  2. Step 2: Convert to fraction form
    99,028.44/136,647 = 63,239.40/x
  3. Step 3: Cross multiply
    99,028.44x = 136,647 × 63,239.40
  4. Step 4: Simplify right side
    99,028.44x = 8,641,474,291.80
  5. Step 5: Solve for x
    x = 8,641,474,291.80/99,028.44
  6. Step 6: Final answer
    x = 87,262.55

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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.