Home / 151,091.20-226,811.40-81,107.20

Finding the Fourth Proportional to 151,091.20, 226,811.40 and 81,107.20

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Solution

The fourth proportional to 151,091.20, 226,811.40 and 81,107.20 is: 121,754.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,091.20 : 226,811.40 = 81,107.20 : x
  2. Step 2: Convert to fraction form
    151,091.20/226,811.40 = 81,107.20/x
  3. Step 3: Cross multiply
    151,091.20x = 226,811.40 × 81,107.20
  4. Step 4: Simplify right side
    151,091.20x = 18,396,037,582.08
  5. Step 5: Solve for x
    x = 18,396,037,582.08/151,091.20
  6. Step 6: Final answer
    x = 121,754.53

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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.