Home / 215,926.80-323,890.20-68,182.80

Finding the Fourth Proportional to 215,926.80, 323,890.20 and 68,182.80

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Solution

The fourth proportional to 215,926.80, 323,890.20 and 68,182.80 is: 102,274.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,926.80 : 323,890.20 = 68,182.80 : x
  2. Step 2: Convert to fraction form
    215,926.80/323,890.20 = 68,182.80/x
  3. Step 3: Cross multiply
    215,926.80x = 323,890.20 × 68,182.80
  4. Step 4: Simplify right side
    215,926.80x = 22,083,740,728.56
  5. Step 5: Solve for x
    x = 22,083,740,728.56/215,926.80
  6. Step 6: Final answer
    x = 102,274.20

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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.