Home / 123,965.28-171,073.22-67,376.79

Finding the Fourth Proportional to 123,965.28, 171,073.22 and 67,376.79

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Solution

The fourth proportional to 123,965.28, 171,073.22 and 67,376.79 is: 92,980.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,965.28 : 171,073.22 = 67,376.79 : x
  2. Step 2: Convert to fraction form
    123,965.28/171,073.22 = 67,376.79/x
  3. Step 3: Cross multiply
    123,965.28x = 171,073.22 × 67,376.79
  4. Step 4: Simplify right side
    123,965.28x = 11,526,364,418.56
  5. Step 5: Solve for x
    x = 11,526,364,418.56/123,965.28
  6. Step 6: Final answer
    x = 92,980.59

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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.