Home / 133,422.45-200,132.56-54,481.31

Finding the Fourth Proportional to 133,422.45, 200,132.56 and 54,481.31

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Solution

The fourth proportional to 133,422.45, 200,132.56 and 54,481.31 is: 81,721.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,422.45 : 200,132.56 = 54,481.31 : x
  2. Step 2: Convert to fraction form
    133,422.45/200,132.56 = 54,481.31/x
  3. Step 3: Cross multiply
    133,422.45x = 200,132.56 × 54,481.31
  4. Step 4: Simplify right side
    133,422.45x = 10,903,484,042.45
  5. Step 5: Solve for x
    x = 10,903,484,042.45/133,422.45
  6. Step 6: Final answer
    x = 81,721.51

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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.