Home / 215,940.60-323,935.20-66,179.70

Finding the Fourth Proportional to 215,940.60, 323,935.20 and 66,179.70

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Solution

The fourth proportional to 215,940.60, 323,935.20 and 66,179.70 is: 99,277.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,940.60 : 323,935.20 = 66,179.70 : x
  2. Step 2: Convert to fraction form
    215,940.60/323,935.20 = 66,179.70/x
  3. Step 3: Cross multiply
    215,940.60x = 323,935.20 × 66,179.70
  4. Step 4: Simplify right side
    215,940.60x = 21,437,934,355.44
  5. Step 5: Solve for x
    x = 21,437,934,355.44/215,940.60
  6. Step 6: Final answer
    x = 99,277.00

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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.