Home / 215,835.80-323,600.10-82,664.60

Finding the Fourth Proportional to 215,835.80, 323,600.10 and 82,664.60

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Solution

The fourth proportional to 215,835.80, 323,600.10 and 82,664.60 is: 123,938.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,835.80 : 323,600.10 = 82,664.60 : x
  2. Step 2: Convert to fraction form
    215,835.80/323,600.10 = 82,664.60/x
  3. Step 3: Cross multiply
    215,835.80x = 323,600.10 × 82,664.60
  4. Step 4: Simplify right side
    215,835.80x = 26,750,272,826.46
  5. Step 5: Solve for x
    x = 26,750,272,826.46/215,835.80
  6. Step 6: Final answer
    x = 123,938.07

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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.