Home / 133,905.43-200,782.03-103,499.81

Finding the Fourth Proportional to 133,905.43, 200,782.03 and 103,499.81

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Solution

The fourth proportional to 133,905.43, 200,782.03 and 103,499.81 is: 155,190.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,905.43 : 200,782.03 = 103,499.81 : x
  2. Step 2: Convert to fraction form
    133,905.43/200,782.03 = 103,499.81/x
  3. Step 3: Cross multiply
    133,905.43x = 200,782.03 × 103,499.81
  4. Step 4: Simplify right side
    133,905.43x = 20,780,901,697.66
  5. Step 5: Solve for x
    x = 20,780,901,697.66/133,905.43
  6. Step 6: Final answer
    x = 155,190.88

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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.