Home / 106,687.38-160,131.50-54,134.58

Finding the Fourth Proportional to 106,687.38, 160,131.50 and 54,134.58

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Solution

The fourth proportional to 106,687.38, 160,131.50 and 54,134.58 is: 81,252.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,687.38 : 160,131.50 = 54,134.58 : x
  2. Step 2: Convert to fraction form
    106,687.38/160,131.50 = 54,134.58/x
  3. Step 3: Cross multiply
    106,687.38x = 160,131.50 × 54,134.58
  4. Step 4: Simplify right side
    106,687.38x = 8,668,651,497.27
  5. Step 5: Solve for x
    x = 8,668,651,497.27/106,687.38
  6. Step 6: Final answer
    x = 81,252.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.