Home / 188,540.20-260,178.84-103,656.64

Finding the Fourth Proportional to 188,540.20, 260,178.84 and 103,656.64

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Solution

The fourth proportional to 188,540.20, 260,178.84 and 103,656.64 is: 143,042.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,540.20 : 260,178.84 = 103,656.64 : x
  2. Step 2: Convert to fraction form
    188,540.20/260,178.84 = 103,656.64/x
  3. Step 3: Cross multiply
    188,540.20x = 260,178.84 × 103,656.64
  4. Step 4: Simplify right side
    188,540.20x = 26,969,264,353.50
  5. Step 5: Solve for x
    x = 26,969,264,353.50/188,540.20
  6. Step 6: Final answer
    x = 143,042.51

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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.