Home / 107,972.20-161,958.32-55,348.12

Finding the Fourth Proportional to 107,972.20, 161,958.32 and 55,348.12

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Solution

The fourth proportional to 107,972.20, 161,958.32 and 55,348.12 is: 83,022.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,972.20 : 161,958.32 = 55,348.12 : x
  2. Step 2: Convert to fraction form
    107,972.20/161,958.32 = 55,348.12/x
  3. Step 3: Cross multiply
    107,972.20x = 161,958.32 × 55,348.12
  4. Step 4: Simplify right side
    107,972.20x = 8,964,088,530.36
  5. Step 5: Solve for x
    x = 8,964,088,530.36/107,972.20
  6. Step 6: Final answer
    x = 83,022.19

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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.