Home / 149,922.49-206,893.04-81,939.46

Finding the Fourth Proportional to 149,922.49, 206,893.04 and 81,939.46

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Solution

The fourth proportional to 149,922.49, 206,893.04 and 81,939.46 is: 113,076.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,922.49 : 206,893.04 = 81,939.46 : x
  2. Step 2: Convert to fraction form
    149,922.49/206,893.04 = 81,939.46/x
  3. Step 3: Cross multiply
    149,922.49x = 206,893.04 × 81,939.46
  4. Step 4: Simplify right side
    149,922.49x = 16,952,703,048.43
  5. Step 5: Solve for x
    x = 16,952,703,048.43/149,922.49
  6. Step 6: Final answer
    x = 113,076.45

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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.