Home / 217,137.23-325,709.91-67,382.40

Finding the Fourth Proportional to 217,137.23, 325,709.91 and 67,382.40

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Solution

The fourth proportional to 217,137.23, 325,709.91 and 67,382.40 is: 101,074.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,137.23 : 325,709.91 = 67,382.40 : x
  2. Step 2: Convert to fraction form
    217,137.23/325,709.91 = 67,382.40/x
  3. Step 3: Cross multiply
    217,137.23x = 325,709.91 × 67,382.40
  4. Step 4: Simplify right side
    217,137.23x = 21,947,115,439.58
  5. Step 5: Solve for x
    x = 21,947,115,439.58/217,137.23
  6. Step 6: Final answer
    x = 101,074.86

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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.