Home / 188,968.19-260,684.25-120,930.62

Finding the Fourth Proportional to 188,968.19, 260,684.25 and 120,930.62

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Solution

The fourth proportional to 188,968.19, 260,684.25 and 120,930.62 is: 166,825.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,968.19 : 260,684.25 = 120,930.62 : x
  2. Step 2: Convert to fraction form
    188,968.19/260,684.25 = 120,930.62/x
  3. Step 3: Cross multiply
    188,968.19x = 260,684.25 × 120,930.62
  4. Step 4: Simplify right side
    188,968.19x = 31,524,708,026.29
  5. Step 5: Solve for x
    x = 31,524,708,026.29/188,968.19
  6. Step 6: Final answer
    x = 166,825.47

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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.