Home / 215,845.20-323,767.80-68,101.20

Finding the Fourth Proportional to 215,845.20, 323,767.80 and 68,101.20

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Solution

The fourth proportional to 215,845.20, 323,767.80 and 68,101.20 is: 102,151.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,845.20 : 323,767.80 = 68,101.20 : x
  2. Step 2: Convert to fraction form
    215,845.20/323,767.80 = 68,101.20/x
  3. Step 3: Cross multiply
    215,845.20x = 323,767.80 × 68,101.20
  4. Step 4: Simplify right side
    215,845.20x = 22,048,975,701.36
  5. Step 5: Solve for x
    x = 22,048,975,701.36/215,845.20
  6. Step 6: Final answer
    x = 102,151.80

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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.