Home / 107,517.80-161,147.10-54,900.20

Finding the Fourth Proportional to 107,517.80, 161,147.10 and 54,900.20

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Solution

The fourth proportional to 107,517.80, 161,147.10 and 54,900.20 is: 82,284.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,517.80 : 161,147.10 = 54,900.20 : x
  2. Step 2: Convert to fraction form
    107,517.80/161,147.10 = 54,900.20/x
  3. Step 3: Cross multiply
    107,517.80x = 161,147.10 × 54,900.20
  4. Step 4: Simplify right side
    107,517.80x = 8,847,008,019.42
  5. Step 5: Solve for x
    x = 8,847,008,019.42/107,517.80
  6. Step 6: Final answer
    x = 82,284.12

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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.