Home / 111,942.81-167,913.84-45,382.78

Finding the Fourth Proportional to 111,942.81, 167,913.84 and 45,382.78

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Solution

The fourth proportional to 111,942.81, 167,913.84 and 45,382.78 is: 68,074.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,942.81 : 167,913.84 = 45,382.78 : x
  2. Step 2: Convert to fraction form
    111,942.81/167,913.84 = 45,382.78/x
  3. Step 3: Cross multiply
    111,942.81x = 167,913.84 × 45,382.78
  4. Step 4: Simplify right side
    111,942.81x = 7,620,396,856.84
  5. Step 5: Solve for x
    x = 7,620,396,856.84/111,942.81
  6. Step 6: Final answer
    x = 68,074.02

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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.