Home / 149,731.92-206,631-82,663.92

Finding the Fourth Proportional to 149,731.92, 206,631 and 82,663.92

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Solution

The fourth proportional to 149,731.92, 206,631 and 82,663.92 is: 114,076.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,731.92 : 206,631 = 82,663.92 : x
  2. Step 2: Convert to fraction form
    149,731.92/206,631 = 82,663.92/x
  3. Step 3: Cross multiply
    149,731.92x = 206,631 × 82,663.92
  4. Step 4: Simplify right side
    149,731.92x = 17,080,928,453.52
  5. Step 5: Solve for x
    x = 17,080,928,453.52/149,731.92
  6. Step 6: Final answer
    x = 114,076.73

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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.