Home / 146,540.45-219,466.21-71,425.20

Finding the Fourth Proportional to 146,540.45, 219,466.21 and 71,425.20

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Solution

The fourth proportional to 146,540.45, 219,466.21 and 71,425.20 is: 106,969.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,540.45 : 219,466.21 = 71,425.20 : x
  2. Step 2: Convert to fraction form
    146,540.45/219,466.21 = 71,425.20/x
  3. Step 3: Cross multiply
    146,540.45x = 219,466.21 × 71,425.20
  4. Step 4: Simplify right side
    146,540.45x = 15,675,416,488.04
  5. Step 5: Solve for x
    x = 15,675,416,488.04/146,540.45
  6. Step 6: Final answer
    x = 106,969.90

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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.