Home / 215,721.09-323,727.44-75,480.93

Finding the Fourth Proportional to 215,721.09, 323,727.44 and 75,480.93

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Solution

The fourth proportional to 215,721.09, 323,727.44 and 75,480.93 is: 113,272.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,721.09 : 323,727.44 = 75,480.93 : x
  2. Step 2: Convert to fraction form
    215,721.09/323,727.44 = 75,480.93/x
  3. Step 3: Cross multiply
    215,721.09x = 323,727.44 × 75,480.93
  4. Step 4: Simplify right side
    215,721.09x = 24,435,247,860.31
  5. Step 5: Solve for x
    x = 24,435,247,860.31/215,721.09
  6. Step 6: Final answer
    x = 113,272.41

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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.