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Finding the Fourth Proportional to 133,395.69, 200,093.88 and 54,509.91

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Solution

The fourth proportional to 133,395.69, 200,093.88 and 54,509.91 is: 81,765.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,395.69 : 200,093.88 = 54,509.91 : x
  2. Step 2: Convert to fraction form
    133,395.69/200,093.88 = 54,509.91/x
  3. Step 3: Cross multiply
    133,395.69x = 200,093.88 × 54,509.91
  4. Step 4: Simplify right side
    133,395.69x = 10,907,099,390.35
  5. Step 5: Solve for x
    x = 10,907,099,390.35/133,395.69
  6. Step 6: Final answer
    x = 81,765.01

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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.