Home / 188,656.26-260,382.60-108,137.70

Finding the Fourth Proportional to 188,656.26, 260,382.60 and 108,137.70

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Solution

The fourth proportional to 188,656.26, 260,382.60 and 108,137.70 is: 149,251.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,656.26 : 260,382.60 = 108,137.70 : x
  2. Step 2: Convert to fraction form
    188,656.26/260,382.60 = 108,137.70/x
  3. Step 3: Cross multiply
    188,656.26x = 260,382.60 × 108,137.70
  4. Step 4: Simplify right side
    188,656.26x = 28,157,175,484.02
  5. Step 5: Solve for x
    x = 28,157,175,484.02/188,656.26
  6. Step 6: Final answer
    x = 149,251.22

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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.