Home / 91,414.23-126,186.22-81,836.79

Finding the Fourth Proportional to 91,414.23, 126,186.22 and 81,836.79

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Solution

The fourth proportional to 91,414.23, 126,186.22 and 81,836.79 is: 112,965.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,414.23 : 126,186.22 = 81,836.79 : x
  2. Step 2: Convert to fraction form
    91,414.23/126,186.22 = 81,836.79/x
  3. Step 3: Cross multiply
    91,414.23x = 126,186.22 × 81,836.79
  4. Step 4: Simplify right side
    91,414.23x = 10,326,675,187.03
  5. Step 5: Solve for x
    x = 10,326,675,187.03/91,414.23
  6. Step 6: Final answer
    x = 112,965.73

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1.5x scale

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.