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Finding the Fourth Proportional to 133,493.12, 200,214.15 and 39,998.87

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Solution

The fourth proportional to 133,493.12, 200,214.15 and 39,998.87 is: 59,990.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,493.12 : 200,214.15 = 39,998.87 : x
  2. Step 2: Convert to fraction form
    133,493.12/200,214.15 = 39,998.87/x
  3. Step 3: Cross multiply
    133,493.12x = 200,214.15 × 39,998.87
  4. Step 4: Simplify right side
    133,493.12x = 8,008,339,758.01
  5. Step 5: Solve for x
    x = 8,008,339,758.01/133,493.12
  6. Step 6: Final answer
    x = 59,990.66

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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.