Home / 120,268.71-166,107.29-81,962.69

Finding the Fourth Proportional to 120,268.71, 166,107.29 and 81,962.69

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Solution

The fourth proportional to 120,268.71, 166,107.29 and 81,962.69 is: 113,201.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,268.71 : 166,107.29 = 81,962.69 : x
  2. Step 2: Convert to fraction form
    120,268.71/166,107.29 = 81,962.69/x
  3. Step 3: Cross multiply
    120,268.71x = 166,107.29 × 81,962.69
  4. Step 4: Simplify right side
    120,268.71x = 13,614,599,076.66
  5. Step 5: Solve for x
    x = 13,614,599,076.66/120,268.71
  6. Step 6: Final answer
    x = 113,201.51

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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.