Home / 215,843.60-323,625.24-103,521.20

Finding the Fourth Proportional to 215,843.60, 323,625.24 and 103,521.20

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Solution

The fourth proportional to 215,843.60, 323,625.24 and 103,521.20 is: 155,214.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,843.60 : 323,625.24 = 103,521.20 : x
  2. Step 2: Convert to fraction form
    215,843.60/323,625.24 = 103,521.20/x
  3. Step 3: Cross multiply
    215,843.60x = 323,625.24 × 103,521.20
  4. Step 4: Simplify right side
    215,843.60x = 33,502,073,195.09
  5. Step 5: Solve for x
    x = 33,502,073,195.09/215,843.60
  6. Step 6: Final answer
    x = 155,214.58

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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.