Home / 159,258.38-219,785.62-91,286.64

Finding the Fourth Proportional to 159,258.38, 219,785.62 and 91,286.64

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Solution

The fourth proportional to 159,258.38, 219,785.62 and 91,286.64 is: 125,980.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,258.38 : 219,785.62 = 91,286.64 : x
  2. Step 2: Convert to fraction form
    159,258.38/219,785.62 = 91,286.64/x
  3. Step 3: Cross multiply
    159,258.38x = 219,785.62 × 91,286.64
  4. Step 4: Simplify right side
    159,258.38x = 20,063,490,770.12
  5. Step 5: Solve for x
    x = 20,063,490,770.12/159,258.38
  6. Step 6: Final answer
    x = 125,980.75

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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.