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Finding the Fourth Proportional to 133,990.80, 200,986.20 and 34,150.80

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Solution

The fourth proportional to 133,990.80, 200,986.20 and 34,150.80 is: 51,226.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,990.80 : 200,986.20 = 34,150.80 : x
  2. Step 2: Convert to fraction form
    133,990.80/200,986.20 = 34,150.80/x
  3. Step 3: Cross multiply
    133,990.80x = 200,986.20 × 34,150.80
  4. Step 4: Simplify right side
    133,990.80x = 6,863,839,518.96
  5. Step 5: Solve for x
    x = 6,863,839,518.96/133,990.80
  6. Step 6: Final answer
    x = 51,226.20

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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.