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Finding the Fourth Proportional to 200,097.02, 300,161.33 and 66,977.77

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Solution

The fourth proportional to 200,097.02, 300,161.33 and 66,977.77 is: 100,471.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,097.02 : 300,161.33 = 66,977.77 : x
  2. Step 2: Convert to fraction form
    200,097.02/300,161.33 = 66,977.77/x
  3. Step 3: Cross multiply
    200,097.02x = 300,161.33 × 66,977.77
  4. Step 4: Simplify right side
    200,097.02x = 20,104,134,687.94
  5. Step 5: Solve for x
    x = 20,104,134,687.94/200,097.02
  6. Step 6: Final answer
    x = 100,471.93

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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.