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Finding the Fourth Proportional to 111,431.25, 167,127.46 and 51,454.62

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Solution

The fourth proportional to 111,431.25, 167,127.46 and 51,454.62 is: 77,172.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,431.25 : 167,127.46 = 51,454.62 : x
  2. Step 2: Convert to fraction form
    111,431.25/167,127.46 = 51,454.62/x
  3. Step 3: Cross multiply
    111,431.25x = 167,127.46 × 51,454.62
  4. Step 4: Simplify right side
    111,431.25x = 8,599,479,817.23
  5. Step 5: Solve for x
    x = 8,599,479,817.23/111,431.25
  6. Step 6: Final answer
    x = 77,172.96

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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.