Home / 188,656.39-260,382.78-108,137.83

Finding the Fourth Proportional to 188,656.39, 260,382.78 and 108,137.83

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Solution

The fourth proportional to 188,656.39, 260,382.78 and 108,137.83 is: 149,251.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,656.39 : 260,382.78 = 108,137.83 : x
  2. Step 2: Convert to fraction form
    188,656.39/260,382.78 = 108,137.83/x
  3. Step 3: Cross multiply
    188,656.39x = 260,382.78 × 108,137.83
  4. Step 4: Simplify right side
    188,656.39x = 28,157,228,798.57
  5. Step 5: Solve for x
    x = 28,157,228,798.57/188,656.39
  6. Step 6: Final answer
    x = 149,251.39

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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.