Home / 215,354.25-323,046.20-73,141.47

Finding the Fourth Proportional to 215,354.25, 323,046.20 and 73,141.47

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Solution

The fourth proportional to 215,354.25, 323,046.20 and 73,141.47 is: 109,717.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,354.25 : 323,046.20 = 73,141.47 : x
  2. Step 2: Convert to fraction form
    215,354.25/323,046.20 = 73,141.47/x
  3. Step 3: Cross multiply
    215,354.25x = 323,046.20 × 73,141.47
  4. Step 4: Simplify right side
    215,354.25x = 23,628,074,128.77
  5. Step 5: Solve for x
    x = 23,628,074,128.77/215,354.25
  6. Step 6: Final answer
    x = 109,717.24

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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.