Home / 219,739.20-329,662.80-61,965.60

Finding the Fourth Proportional to 219,739.20, 329,662.80 and 61,965.60

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Solution

The fourth proportional to 219,739.20, 329,662.80 and 61,965.60 is: 92,963.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,739.20 : 329,662.80 = 61,965.60 : x
  2. Step 2: Convert to fraction form
    219,739.20/329,662.80 = 61,965.60/x
  3. Step 3: Cross multiply
    219,739.20x = 329,662.80 × 61,965.60
  4. Step 4: Simplify right side
    219,739.20x = 20,427,753,199.68
  5. Step 5: Solve for x
    x = 20,427,753,199.68/219,739.20
  6. Step 6: Final answer
    x = 92,963.63

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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.