Home / 215,893.58-323,912.01-66,135.34

Finding the Fourth Proportional to 215,893.58, 323,912.01 and 66,135.34

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Solution

The fourth proportional to 215,893.58, 323,912.01 and 66,135.34 is: 99,224.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,893.58 : 323,912.01 = 66,135.34 : x
  2. Step 2: Convert to fraction form
    215,893.58/323,912.01 = 66,135.34/x
  3. Step 3: Cross multiply
    215,893.58x = 323,912.01 × 66,135.34
  4. Step 4: Simplify right side
    215,893.58x = 21,422,029,742.33
  5. Step 5: Solve for x
    x = 21,422,029,742.33/215,893.58
  6. Step 6: Final answer
    x = 99,224.95

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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.