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Finding the Fourth Proportional to 111,382.60, 167,073.90 and 28,276.60

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Solution

The fourth proportional to 111,382.60, 167,073.90 and 28,276.60 is: 42,414.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,382.60 : 167,073.90 = 28,276.60 : x
  2. Step 2: Convert to fraction form
    111,382.60/167,073.90 = 28,276.60/x
  3. Step 3: Cross multiply
    111,382.60x = 167,073.90 × 28,276.60
  4. Step 4: Simplify right side
    111,382.60x = 4,724,281,840.74
  5. Step 5: Solve for x
    x = 4,724,281,840.74/111,382.60
  6. Step 6: Final answer
    x = 42,414.90

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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.