Home / 146,104.20-218,998.89-71,274.78

Finding the Fourth Proportional to 146,104.20, 218,998.89 and 71,274.78

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Solution

The fourth proportional to 146,104.20, 218,998.89 and 71,274.78 is: 106,835.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,104.20 : 218,998.89 = 71,274.78 : x
  2. Step 2: Convert to fraction form
    146,104.20/218,998.89 = 71,274.78/x
  3. Step 3: Cross multiply
    146,104.20x = 218,998.89 × 71,274.78
  4. Step 4: Simplify right side
    146,104.20x = 15,609,097,704.99
  5. Step 5: Solve for x
    x = 15,609,097,704.99/146,104.20
  6. Step 6: Final answer
    x = 106,835.38

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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.