Home / 188,863.28-260,632.32-103,980.38

Finding the Fourth Proportional to 188,863.28, 260,632.32 and 103,980.38

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Solution

The fourth proportional to 188,863.28, 260,632.32 and 103,980.38 is: 143,493.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,863.28 : 260,632.32 = 103,980.38 : x
  2. Step 2: Convert to fraction form
    188,863.28/260,632.32 = 103,980.38/x
  3. Step 3: Cross multiply
    188,863.28x = 260,632.32 × 103,980.38
  4. Step 4: Simplify right side
    188,863.28x = 27,100,647,673.88
  5. Step 5: Solve for x
    x = 27,100,647,673.88/188,863.28
  6. Step 6: Final answer
    x = 143,493.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.