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Finding the Fourth Proportional to 111,083.68, 166,626.16 and 45,419.68

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Solution

The fourth proportional to 111,083.68, 166,626.16 and 45,419.68 is: 68,129.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,083.68 : 166,626.16 = 45,419.68 : x
  2. Step 2: Convert to fraction form
    111,083.68/166,626.16 = 45,419.68/x
  3. Step 3: Cross multiply
    111,083.68x = 166,626.16 × 45,419.68
  4. Step 4: Simplify right side
    111,083.68x = 7,568,106,866.83
  5. Step 5: Solve for x
    x = 7,568,106,866.83/111,083.68
  6. Step 6: Final answer
    x = 68,129.78

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1.5x scale

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.