Home / 215,840.12-323,762.92-82,728.36

Finding the Fourth Proportional to 215,840.12, 323,762.92 and 82,728.36

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Solution

The fourth proportional to 215,840.12, 323,762.92 and 82,728.36 is: 124,093.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,840.12 : 323,762.92 = 82,728.36 : x
  2. Step 2: Convert to fraction form
    215,840.12/323,762.92 = 82,728.36/x
  3. Step 3: Cross multiply
    215,840.12x = 323,762.92 × 82,728.36
  4. Step 4: Simplify right side
    215,840.12x = 26,784,375,193.59
  5. Step 5: Solve for x
    x = 26,784,375,193.59/215,840.12
  6. Step 6: Final answer
    x = 124,093.59

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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.