Home / 133,039.20-199,583.10-54,161.40

Finding the Fourth Proportional to 133,039.20, 199,583.10 and 54,161.40

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Solution

The fourth proportional to 133,039.20, 199,583.10 and 54,161.40 is: 81,251.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,039.20 : 199,583.10 = 54,161.40 : x
  2. Step 2: Convert to fraction form
    133,039.20/199,583.10 = 54,161.40/x
  3. Step 3: Cross multiply
    133,039.20x = 199,583.10 × 54,161.40
  4. Step 4: Simplify right side
    133,039.20x = 10,809,700,112.34
  5. Step 5: Solve for x
    x = 10,809,700,112.34/133,039.20
  6. Step 6: Final answer
    x = 81,251.99

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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.