Home / 208,942.68-313,398.69-66,749.77

Finding the Fourth Proportional to 208,942.68, 313,398.69 and 66,749.77

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Solution

The fourth proportional to 208,942.68, 313,398.69 and 66,749.77 is: 100,119.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,942.68 : 313,398.69 = 66,749.77 : x
  2. Step 2: Convert to fraction form
    208,942.68/313,398.69 = 66,749.77/x
  3. Step 3: Cross multiply
    208,942.68x = 313,398.69 × 66,749.77
  4. Step 4: Simplify right side
    208,942.68x = 20,919,290,475.80
  5. Step 5: Solve for x
    x = 20,919,290,475.80/208,942.68
  6. Step 6: Final answer
    x = 100,119.76

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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.