Home / 149,902.97-206,868.81-81,922.82

Finding the Fourth Proportional to 149,902.97, 206,868.81 and 81,922.82

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Solution

The fourth proportional to 149,902.97, 206,868.81 and 81,922.82 is: 113,054.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,902.97 : 206,868.81 = 81,922.82 : x
  2. Step 2: Convert to fraction form
    149,902.97/206,868.81 = 81,922.82/x
  3. Step 3: Cross multiply
    149,902.97x = 206,868.81 × 81,922.82
  4. Step 4: Simplify right side
    149,902.97x = 16,947,276,285.24
  5. Step 5: Solve for x
    x = 16,947,276,285.24/149,902.97
  6. Step 6: Final answer
    x = 113,054.97

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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.