Home / 217,626.32-326,500.44-77,399.12

Finding the Fourth Proportional to 217,626.32, 326,500.44 and 77,399.12

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Solution

The fourth proportional to 217,626.32, 326,500.44 and 77,399.12 is: 116,120.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,626.32 : 326,500.44 = 77,399.12 : x
  2. Step 2: Convert to fraction form
    217,626.32/326,500.44 = 77,399.12/x
  3. Step 3: Cross multiply
    217,626.32x = 326,500.44 × 77,399.12
  4. Step 4: Simplify right side
    217,626.32x = 25,270,846,735.61
  5. Step 5: Solve for x
    x = 25,270,846,735.61/217,626.32
  6. Step 6: Final answer
    x = 116,120.36

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1.5x scale

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.