Home / 208,540.20-312,834.62-75,483.12

Finding the Fourth Proportional to 208,540.20, 312,834.62 and 75,483.12

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Solution

The fourth proportional to 208,540.20, 312,834.62 and 75,483.12 is: 113,233.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,540.20 : 312,834.62 = 75,483.12 : x
  2. Step 2: Convert to fraction form
    208,540.20/312,834.62 = 75,483.12/x
  3. Step 3: Cross multiply
    208,540.20x = 312,834.62 × 75,483.12
  4. Step 4: Simplify right side
    208,540.20x = 23,613,734,523.45
  5. Step 5: Solve for x
    x = 23,613,734,523.45/208,540.20
  6. Step 6: Final answer
    x = 113,233.49

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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.