Home / 189,084.60-260,949.06-108,538.20

Finding the Fourth Proportional to 189,084.60, 260,949.06 and 108,538.20

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Solution

The fourth proportional to 189,084.60, 260,949.06 and 108,538.20 is: 149,789.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,084.60 : 260,949.06 = 108,538.20 : x
  2. Step 2: Convert to fraction form
    189,084.60/260,949.06 = 108,538.20/x
  3. Step 3: Cross multiply
    189,084.60x = 260,949.06 × 108,538.20
  4. Step 4: Simplify right side
    189,084.60x = 28,322,941,264.09
  5. Step 5: Solve for x
    x = 28,322,941,264.09/189,084.60
  6. Step 6: Final answer
    x = 149,789.78

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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.