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Finding the Fourth Proportional to 200,101.82, 300,153.18 and 81,773.15

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Solution

The fourth proportional to 200,101.82, 300,153.18 and 81,773.15 is: 122,659.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,101.82 : 300,153.18 = 81,773.15 : x
  2. Step 2: Convert to fraction form
    200,101.82/300,153.18 = 81,773.15/x
  3. Step 3: Cross multiply
    200,101.82x = 300,153.18 × 81,773.15
  4. Step 4: Simplify right side
    200,101.82x = 24,544,471,011.12
  5. Step 5: Solve for x
    x = 24,544,471,011.12/200,101.82
  6. Step 6: Final answer
    x = 122,659.91

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1.5x scale

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.