Home / 100,734.86-151,107.68-25,855.65

Finding the Fourth Proportional to 100,734.86, 151,107.68 and 25,855.65

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Solution

The fourth proportional to 100,734.86, 151,107.68 and 25,855.65 is: 38,784.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,734.86 : 151,107.68 = 25,855.65 : x
  2. Step 2: Convert to fraction form
    100,734.86/151,107.68 = 25,855.65/x
  3. Step 3: Cross multiply
    100,734.86x = 151,107.68 × 25,855.65
  4. Step 4: Simplify right side
    100,734.86x = 3,906,987,286.39
  5. Step 5: Solve for x
    x = 3,906,987,286.39/100,734.86
  6. Step 6: Final answer
    x = 38,784.86

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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.