Home / 149,731.00-206,627.71-81,747.97

Finding the Fourth Proportional to 149,731.00, 206,627.71 and 81,747.97

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Solution

The fourth proportional to 149,731.00, 206,627.71 and 81,747.97 is: 112,811.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,731.00 : 206,627.71 = 81,747.97 : x
  2. Step 2: Convert to fraction form
    149,731.00/206,627.71 = 81,747.97/x
  3. Step 3: Cross multiply
    149,731.00x = 206,627.71 × 81,747.97
  4. Step 4: Simplify right side
    149,731.00x = 16,891,395,270.59
  5. Step 5: Solve for x
    x = 16,891,395,270.59/149,731.00
  6. Step 6: Final answer
    x = 112,811.61

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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.