Home / 146,245.79-219,340.94-71,290.55

Finding the Fourth Proportional to 146,245.79, 219,340.94 and 71,290.55

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Solution

The fourth proportional to 146,245.79, 219,340.94 and 71,290.55 is: 106,922.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,245.79 : 219,340.94 = 71,290.55 : x
  2. Step 2: Convert to fraction form
    146,245.79/219,340.94 = 71,290.55/x
  3. Step 3: Cross multiply
    146,245.79x = 219,340.94 × 71,290.55
  4. Step 4: Simplify right side
    146,245.79x = 15,636,936,976.70
  5. Step 5: Solve for x
    x = 15,636,936,976.70/146,245.79
  6. Step 6: Final answer
    x = 106,922.30

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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.