Home / 135,331.38-186,777.12-77,959.56

Finding the Fourth Proportional to 135,331.38, 186,777.12 and 77,959.56

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Solution

The fourth proportional to 135,331.38, 186,777.12 and 77,959.56 is: 107,595.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,331.38 : 186,777.12 = 77,959.56 : x
  2. Step 2: Convert to fraction form
    135,331.38/186,777.12 = 77,959.56/x
  3. Step 3: Cross multiply
    135,331.38x = 186,777.12 × 77,959.56
  4. Step 4: Simplify right side
    135,331.38x = 14,561,062,093.27
  5. Step 5: Solve for x
    x = 14,561,062,093.27/135,331.38
  6. Step 6: Final answer
    x = 107,595.61

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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.