Home / 204,193.32-305,634.66-109,186.20

Finding the Fourth Proportional to 204,193.32, 305,634.66 and 109,186.20

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Solution

The fourth proportional to 204,193.32, 305,634.66 and 109,186.20 is: 163,428.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,193.32 : 305,634.66 = 109,186.20 : x
  2. Step 2: Convert to fraction form
    204,193.32/305,634.66 = 109,186.20/x
  3. Step 3: Cross multiply
    204,193.32x = 305,634.66 × 109,186.20
  4. Step 4: Simplify right side
    204,193.32x = 33,371,087,113.69
  5. Step 5: Solve for x
    x = 33,371,087,113.69/204,193.32
  6. Step 6: Final answer
    x = 163,428.89

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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.