Home / 217,183.25-325,491.15-121,116.63

Finding the Fourth Proportional to 217,183.25, 325,491.15 and 121,116.63

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Solution

The fourth proportional to 217,183.25, 325,491.15 and 121,116.63 is: 181,516.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,183.25 : 325,491.15 = 121,116.63 : x
  2. Step 2: Convert to fraction form
    217,183.25/325,491.15 = 121,116.63/x
  3. Step 3: Cross multiply
    217,183.25x = 325,491.15 × 121,116.63
  4. Step 4: Simplify right side
    217,183.25x = 39,422,391,942.16
  5. Step 5: Solve for x
    x = 39,422,391,942.16/217,183.25
  6. Step 6: Final answer
    x = 181,516.72

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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.