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Finding the Fourth Proportional to 133,339.74, 200,009.79 and 54,453.96

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Solution

The fourth proportional to 133,339.74, 200,009.79 and 54,453.96 is: 81,681.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,339.74 : 200,009.79 = 54,453.96 : x
  2. Step 2: Convert to fraction form
    133,339.74/200,009.79 = 54,453.96/x
  3. Step 3: Cross multiply
    133,339.74x = 200,009.79 × 54,453.96
  4. Step 4: Simplify right side
    133,339.74x = 10,891,325,104.27
  5. Step 5: Solve for x
    x = 10,891,325,104.27/133,339.74
  6. Step 6: Final answer
    x = 81,681.01

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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.