Home / 135,661.43-187,277.06-90,414.83

Finding the Fourth Proportional to 135,661.43, 187,277.06 and 90,414.83

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Solution

The fourth proportional to 135,661.43, 187,277.06 and 90,414.83 is: 124,815.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,661.43 : 187,277.06 = 90,414.83 : x
  2. Step 2: Convert to fraction form
    135,661.43/187,277.06 = 90,414.83/x
  3. Step 3: Cross multiply
    135,661.43x = 187,277.06 × 90,414.83
  4. Step 4: Simplify right side
    135,661.43x = 16,932,623,542.80
  5. Step 5: Solve for x
    x = 16,932,623,542.80/135,661.43
  6. Step 6: Final answer
    x = 124,815.31

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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.