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Finding the Fourth Proportional to 112,635.30, 168,515.55 and 73,269.30

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Solution

The fourth proportional to 112,635.30, 168,515.55 and 73,269.30 is: 109,619.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,635.30 : 168,515.55 = 73,269.30 : x
  2. Step 2: Convert to fraction form
    112,635.30/168,515.55 = 73,269.30/x
  3. Step 3: Cross multiply
    112,635.30x = 168,515.55 × 73,269.30
  4. Step 4: Simplify right side
    112,635.30x = 12,347,016,387.62
  5. Step 5: Solve for x
    x = 12,347,016,387.62/112,635.30
  6. Step 6: Final answer
    x = 109,619.42

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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.