Home / 179,219.79-268,858.85-66,939.21

Finding the Fourth Proportional to 179,219.79, 268,858.85 and 66,939.21

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Solution

The fourth proportional to 179,219.79, 268,858.85 and 66,939.21 is: 100,419.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,219.79 : 268,858.85 = 66,939.21 : x
  2. Step 2: Convert to fraction form
    179,219.79/268,858.85 = 66,939.21/x
  3. Step 3: Cross multiply
    179,219.79x = 268,858.85 × 66,939.21
  4. Step 4: Simplify right side
    179,219.79x = 17,997,198,685.81
  5. Step 5: Solve for x
    x = 17,997,198,685.81/179,219.79
  6. Step 6: Final answer
    x = 100,419.71

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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.