Home / 107,686.41-161,520.38-65,555.56

Finding the Fourth Proportional to 107,686.41, 161,520.38 and 65,555.56

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Solution

The fourth proportional to 107,686.41, 161,520.38 and 65,555.56 is: 98,327.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,686.41 : 161,520.38 = 65,555.56 : x
  2. Step 2: Convert to fraction form
    107,686.41/161,520.38 = 65,555.56/x
  3. Step 3: Cross multiply
    107,686.41x = 161,520.38 × 65,555.56
  4. Step 4: Simplify right side
    107,686.41x = 10,588,558,230.73
  5. Step 5: Solve for x
    x = 10,588,558,230.73/107,686.41
  6. Step 6: Final answer
    x = 98,327.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.