Home / 149,601.78-206,468.73-85,939.43

Finding the Fourth Proportional to 149,601.78, 206,468.73 and 85,939.43

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Solution

The fourth proportional to 149,601.78, 206,468.73 and 85,939.43 is: 118,606.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,601.78 : 206,468.73 = 85,939.43 : x
  2. Step 2: Convert to fraction form
    149,601.78/206,468.73 = 85,939.43/x
  3. Step 3: Cross multiply
    149,601.78x = 206,468.73 × 85,939.43
  4. Step 4: Simplify right side
    149,601.78x = 17,743,803,936.68
  5. Step 5: Solve for x
    x = 17,743,803,936.68/149,601.78
  6. Step 6: Final answer
    x = 118,606.90

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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.