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Finding the Fourth Proportional to 105,162, 157,737.24 and 42,884.88

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Solution

The fourth proportional to 105,162, 157,737.24 and 42,884.88 is: 64,324.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,162 : 157,737.24 = 42,884.88 : x
  2. Step 2: Convert to fraction form
    105,162/157,737.24 = 42,884.88/x
  3. Step 3: Cross multiply
    105,162x = 157,737.24 × 42,884.88
  4. Step 4: Simplify right side
    105,162x = 6,764,542,608.93
  5. Step 5: Solve for x
    x = 6,764,542,608.93/105,162
  6. Step 6: Final answer
    x = 64,324.97

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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.