Home / 111,664.38-154,091.78-69,226.86

Finding the Fourth Proportional to 111,664.38, 154,091.78 and 69,226.86

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Solution

The fourth proportional to 111,664.38, 154,091.78 and 69,226.86 is: 95,529.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,664.38 : 154,091.78 = 69,226.86 : x
  2. Step 2: Convert to fraction form
    111,664.38/154,091.78 = 69,226.86/x
  3. Step 3: Cross multiply
    111,664.38x = 154,091.78 × 69,226.86
  4. Step 4: Simplify right side
    111,664.38x = 10,667,290,081.21
  5. Step 5: Solve for x
    x = 10,667,290,081.21/111,664.38
  6. Step 6: Final answer
    x = 95,529.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.