Home / 204,976.40-307,464.60-72,006.80

Finding the Fourth Proportional to 204,976.40, 307,464.60 and 72,006.80

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Solution

The fourth proportional to 204,976.40, 307,464.60 and 72,006.80 is: 108,010.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,976.40 : 307,464.60 = 72,006.80 : x
  2. Step 2: Convert to fraction form
    204,976.40/307,464.60 = 72,006.80/x
  3. Step 3: Cross multiply
    204,976.40x = 307,464.60 × 72,006.80
  4. Step 4: Simplify right side
    204,976.40x = 22,139,541,959.28
  5. Step 5: Solve for x
    x = 22,139,541,959.28/204,976.40
  6. Step 6: Final answer
    x = 108,010.20

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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.