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Finding the Fourth Proportional to 101,568, 152,410.33 and 79,318.92

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Solution

The fourth proportional to 101,568, 152,410.33 and 79,318.92 is: 119,023.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,568 : 152,410.33 = 79,318.92 : x
  2. Step 2: Convert to fraction form
    101,568/152,410.33 = 79,318.92/x
  3. Step 3: Cross multiply
    101,568x = 152,410.33 × 79,318.92
  4. Step 4: Simplify right side
    101,568x = 12,089,022,772.44
  5. Step 5: Solve for x
    x = 12,089,022,772.44/101,568
  6. Step 6: Final answer
    x = 119,023.93

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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.