Home / 123,947.82-170,999.70-91,759.48

Finding the Fourth Proportional to 123,947.82, 170,999.70 and 91,759.48

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Solution

The fourth proportional to 123,947.82, 170,999.70 and 91,759.48 is: 126,592.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,947.82 : 170,999.70 = 91,759.48 : x
  2. Step 2: Convert to fraction form
    123,947.82/170,999.70 = 91,759.48/x
  3. Step 3: Cross multiply
    123,947.82x = 170,999.70 × 91,759.48
  4. Step 4: Simplify right side
    123,947.82x = 15,690,843,552.16
  5. Step 5: Solve for x
    x = 15,690,843,552.16/123,947.82
  6. Step 6: Final answer
    x = 126,592.33

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1.5x scale

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.