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Finding the Fourth Proportional to 200,066.35, 300,099.83 and 81,737.81

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Solution

The fourth proportional to 200,066.35, 300,099.83 and 81,737.81 is: 122,606.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,066.35 : 300,099.83 = 81,737.81 : x
  2. Step 2: Convert to fraction form
    200,066.35/300,099.83 = 81,737.81/x
  3. Step 3: Cross multiply
    200,066.35x = 300,099.83 × 81,737.81
  4. Step 4: Simplify right side
    200,066.35x = 24,529,500,976.38
  5. Step 5: Solve for x
    x = 24,529,500,976.38/200,066.35
  6. Step 6: Final answer
    x = 122,606.83

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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.