Home / 179,355.03-268,939.12-66,942.80

Finding the Fourth Proportional to 179,355.03, 268,939.12 and 66,942.80

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Solution

The fourth proportional to 179,355.03, 268,939.12 and 66,942.80 is: 100,379.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,355.03 : 268,939.12 = 66,942.80 : x
  2. Step 2: Convert to fraction form
    179,355.03/268,939.12 = 66,942.80/x
  3. Step 3: Cross multiply
    179,355.03x = 268,939.12 × 66,942.80
  4. Step 4: Simplify right side
    179,355.03x = 18,003,536,870.35
  5. Step 5: Solve for x
    x = 18,003,536,870.35/179,355.03
  6. Step 6: Final answer
    x = 100,379.33

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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.