Home / 100,504.43-138,761.01-62,304.80

Finding the Fourth Proportional to 100,504.43, 138,761.01 and 62,304.80

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Solution

The fourth proportional to 100,504.43, 138,761.01 and 62,304.80 is: 86,020.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,504.43 : 138,761.01 = 62,304.80 : x
  2. Step 2: Convert to fraction form
    100,504.43/138,761.01 = 62,304.80/x
  3. Step 3: Cross multiply
    100,504.43x = 138,761.01 × 62,304.80
  4. Step 4: Simplify right side
    100,504.43x = 8,645,476,282.04
  5. Step 5: Solve for x
    x = 8,645,476,282.04/100,504.43
  6. Step 6: Final answer
    x = 86,020.85

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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.