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Finding the Fourth Proportional to 111,280.57, 166,921.07 and 27,040.81

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Solution

The fourth proportional to 111,280.57, 166,921.07 and 27,040.81 is: 40,561.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,280.57 : 166,921.07 = 27,040.81 : x
  2. Step 2: Convert to fraction form
    111,280.57/166,921.07 = 27,040.81/x
  3. Step 3: Cross multiply
    111,280.57x = 166,921.07 × 27,040.81
  4. Step 4: Simplify right side
    111,280.57x = 4,513,680,938.87
  5. Step 5: Solve for x
    x = 4,513,680,938.87/111,280.57
  6. Step 6: Final answer
    x = 40,561.27

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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.