Home / 123,947.32-170,999.01-91,758.99

Finding the Fourth Proportional to 123,947.32, 170,999.01 and 91,758.99

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Solution

The fourth proportional to 123,947.32, 170,999.01 and 91,758.99 is: 126,591.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,947.32 : 170,999.01 = 91,758.99 : x
  2. Step 2: Convert to fraction form
    123,947.32/170,999.01 = 91,758.99/x
  3. Step 3: Cross multiply
    123,947.32x = 170,999.01 × 91,758.99
  4. Step 4: Simplify right side
    123,947.32x = 15,690,695,593.60
  5. Step 5: Solve for x
    x = 15,690,695,593.60/123,947.32
  6. Step 6: Final answer
    x = 126,591.65

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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.