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Finding the Fourth Proportional to 111,905.87, 167,868 and 48,728.07

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Solution

The fourth proportional to 111,905.87, 167,868 and 48,728.07 is: 73,096.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,905.87 : 167,868 = 48,728.07 : x
  2. Step 2: Convert to fraction form
    111,905.87/167,868 = 48,728.07/x
  3. Step 3: Cross multiply
    111,905.87x = 167,868 × 48,728.07
  4. Step 4: Simplify right side
    111,905.87x = 8,179,883,654.76
  5. Step 5: Solve for x
    x = 8,179,883,654.76/111,905.87
  6. Step 6: Final answer
    x = 73,096.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.