Home / 204,127.76-305,536.50-109,120.36

Finding the Fourth Proportional to 204,127.76, 305,536.50 and 109,120.36

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Solution

The fourth proportional to 204,127.76, 305,536.50 and 109,120.36 is: 163,330.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,127.76 : 305,536.50 = 109,120.36 : x
  2. Step 2: Convert to fraction form
    204,127.76/305,536.50 = 109,120.36/x
  3. Step 3: Cross multiply
    204,127.76x = 305,536.50 × 109,120.36
  4. Step 4: Simplify right side
    204,127.76x = 33,340,252,873.14
  5. Step 5: Solve for x
    x = 33,340,252,873.14/204,127.76
  6. Step 6: Final answer
    x = 163,330.32

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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.