Home / 215,920.60-323,869.23-66,161.34

Finding the Fourth Proportional to 215,920.60, 323,869.23 and 66,161.34

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Solution

The fourth proportional to 215,920.60, 323,869.23 and 66,161.34 is: 99,238.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,920.60 : 323,869.23 = 66,161.34 : x
  2. Step 2: Convert to fraction form
    215,920.60/323,869.23 = 66,161.34/x
  3. Step 3: Cross multiply
    215,920.60x = 323,869.23 × 66,161.34
  4. Step 4: Simplify right side
    215,920.60x = 21,427,622,241.57
  5. Step 5: Solve for x
    x = 21,427,622,241.57/215,920.60
  6. Step 6: Final answer
    x = 99,238.43

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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.