Home / 123,669.68-170,663.40-67,081.04

Finding the Fourth Proportional to 123,669.68, 170,663.40 and 67,081.04

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Solution

The fourth proportional to 123,669.68, 170,663.40 and 67,081.04 is: 92,571.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,669.68 : 170,663.40 = 67,081.04 : x
  2. Step 2: Convert to fraction form
    123,669.68/170,663.40 = 67,081.04/x
  3. Step 3: Cross multiply
    123,669.68x = 170,663.40 × 67,081.04
  4. Step 4: Simplify right side
    123,669.68x = 11,448,278,361.94
  5. Step 5: Solve for x
    x = 11,448,278,361.94/123,669.68
  6. Step 6: Final answer
    x = 92,571.42

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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.