Home / 133,360.12-200,138.82-107,378.56

Finding the Fourth Proportional to 133,360.12, 200,138.82 and 107,378.56

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Solution

The fourth proportional to 133,360.12, 200,138.82 and 107,378.56 is: 161,147.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,360.12 : 200,138.82 = 107,378.56 : x
  2. Step 2: Convert to fraction form
    133,360.12/200,138.82 = 107,378.56/x
  3. Step 3: Cross multiply
    133,360.12x = 200,138.82 × 107,378.56
  4. Step 4: Simplify right side
    133,360.12x = 21,490,618,291.70
  5. Step 5: Solve for x
    x = 21,490,618,291.70/133,360.12
  6. Step 6: Final answer
    x = 161,147.26

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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.