Home / 186,286.16-257,067.78-105,708.88

Finding the Fourth Proportional to 186,286.16, 257,067.78 and 105,708.88

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Solution

The fourth proportional to 186,286.16, 257,067.78 and 105,708.88 is: 145,874.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,286.16 : 257,067.78 = 105,708.88 : x
  2. Step 2: Convert to fraction form
    186,286.16/257,067.78 = 105,708.88/x
  3. Step 3: Cross multiply
    186,286.16x = 257,067.78 × 105,708.88
  4. Step 4: Simplify right side
    186,286.16x = 27,174,347,107.89
  5. Step 5: Solve for x
    x = 27,174,347,107.89/186,286.16
  6. Step 6: Final answer
    x = 145,874.21

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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.