Home / 146,507.20-219,906.60-71,711.80

Finding the Fourth Proportional to 146,507.20, 219,906.60 and 71,711.80

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Solution

The fourth proportional to 146,507.20, 219,906.60 and 71,711.80 is: 107,639.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,507.20 : 219,906.60 = 71,711.80 : x
  2. Step 2: Convert to fraction form
    146,507.20/219,906.60 = 71,711.80/x
  3. Step 3: Cross multiply
    146,507.20x = 219,906.60 × 71,711.80
  4. Step 4: Simplify right side
    146,507.20x = 15,769,898,117.88
  5. Step 5: Solve for x
    x = 15,769,898,117.88/146,507.20
  6. Step 6: Final answer
    x = 107,639.07

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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.