Home / 217,911.72-326,680.35-75,738.53

Finding the Fourth Proportional to 217,911.72, 326,680.35 and 75,738.53

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Solution

The fourth proportional to 217,911.72, 326,680.35 and 75,738.53 is: 113,542.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,911.72 : 326,680.35 = 75,738.53 : x
  2. Step 2: Convert to fraction form
    217,911.72/326,680.35 = 75,738.53/x
  3. Step 3: Cross multiply
    217,911.72x = 326,680.35 × 75,738.53
  4. Step 4: Simplify right side
    217,911.72x = 24,742,287,855.48
  5. Step 5: Solve for x
    x = 24,742,287,855.48/217,911.72
  6. Step 6: Final answer
    x = 113,542.71

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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.