Home / 269,274.70-403,912.05-91,981.90

Finding the Fourth Proportional to 269,274.70, 403,912.05 and 91,981.90

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Solution

The fourth proportional to 269,274.70, 403,912.05 and 91,981.90 is: 137,972.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,274.70 : 403,912.05 = 91,981.90 : x
  2. Step 2: Convert to fraction form
    269,274.70/403,912.05 = 91,981.90/x
  3. Step 3: Cross multiply
    269,274.70x = 403,912.05 × 91,981.90
  4. Step 4: Simplify right side
    269,274.70x = 37,152,597,791.90
  5. Step 5: Solve for x
    x = 37,152,597,791.90/269,274.70
  6. Step 6: Final answer
    x = 137,972.85

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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.