Home / 135,778.28-187,365.56-82,031.54

Finding the Fourth Proportional to 135,778.28, 187,365.56 and 82,031.54

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Solution

The fourth proportional to 135,778.28, 187,365.56 and 82,031.54 is: 113,198.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,778.28 : 187,365.56 = 82,031.54 : x
  2. Step 2: Convert to fraction form
    135,778.28/187,365.56 = 82,031.54/x
  3. Step 3: Cross multiply
    135,778.28x = 187,365.56 × 82,031.54
  4. Step 4: Simplify right side
    135,778.28x = 15,369,885,429.76
  5. Step 5: Solve for x
    x = 15,369,885,429.76/135,778.28
  6. Step 6: Final answer
    x = 113,198.41

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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.