Home / 149,721.75-206,616.15-82,653.75

Finding the Fourth Proportional to 149,721.75, 206,616.15 and 82,653.75

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Solution

The fourth proportional to 149,721.75, 206,616.15 and 82,653.75 is: 114,062.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,721.75 : 206,616.15 = 82,653.75 : x
  2. Step 2: Convert to fraction form
    149,721.75/206,616.15 = 82,653.75/x
  3. Step 3: Cross multiply
    149,721.75x = 206,616.15 × 82,653.75
  4. Step 4: Simplify right side
    149,721.75x = 17,077,599,608.06
  5. Step 5: Solve for x
    x = 17,077,599,608.06/149,721.75
  6. Step 6: Final answer
    x = 114,062.25

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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.