Home / 200,639.14-301,057.32-80,691.30

Finding the Fourth Proportional to 200,639.14, 301,057.32 and 80,691.30

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Solution

The fourth proportional to 200,639.14, 301,057.32 and 80,691.30 is: 121,076.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,639.14 : 301,057.32 = 80,691.30 : x
  2. Step 2: Convert to fraction form
    200,639.14/301,057.32 = 80,691.30/x
  3. Step 3: Cross multiply
    200,639.14x = 301,057.32 × 80,691.30
  4. Step 4: Simplify right side
    200,639.14x = 24,292,706,827.91
  5. Step 5: Solve for x
    x = 24,292,706,827.91/200,639.14
  6. Step 6: Final answer
    x = 121,076.61

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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.