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Finding the Fourth Proportional to 181,995.90, 273,285.45 and 137,672.70

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Solution

The fourth proportional to 181,995.90, 273,285.45 and 137,672.70 is: 206,729.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,995.90 : 273,285.45 = 137,672.70 : x
  2. Step 2: Convert to fraction form
    181,995.90/273,285.45 = 137,672.70/x
  3. Step 3: Cross multiply
    181,995.90x = 273,285.45 × 137,672.70
  4. Step 4: Simplify right side
    181,995.90x = 37,623,945,772.22
  5. Step 5: Solve for x
    x = 37,623,945,772.22/181,995.90
  6. Step 6: Final answer
    x = 206,729.63

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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.