Home / 133,213.91-183,833.03-72,783.26

Finding the Fourth Proportional to 133,213.91, 183,833.03 and 72,783.26

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Solution

The fourth proportional to 133,213.91, 183,833.03 and 72,783.26 is: 100,439.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,213.91 : 183,833.03 = 72,783.26 : x
  2. Step 2: Convert to fraction form
    133,213.91/183,833.03 = 72,783.26/x
  3. Step 3: Cross multiply
    133,213.91x = 183,833.03 × 72,783.26
  4. Step 4: Simplify right side
    133,213.91x = 13,379,965,936.00
  5. Step 5: Solve for x
    x = 13,379,965,936.00/133,213.91
  6. Step 6: Final answer
    x = 100,439.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.