Home / 81,224.07-121,540.86-67,052.31

Finding the Fourth Proportional to 81,224.07, 121,540.86 and 67,052.31

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Solution

The fourth proportional to 81,224.07, 121,540.86 and 67,052.31 is: 100,334.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,224.07 : 121,540.86 = 67,052.31 : x
  2. Step 2: Convert to fraction form
    81,224.07/121,540.86 = 67,052.31/x
  3. Step 3: Cross multiply
    81,224.07x = 121,540.86 × 67,052.31
  4. Step 4: Simplify right side
    81,224.07x = 8,149,595,422.39
  5. Step 5: Solve for x
    x = 8,149,595,422.39/81,224.07
  6. Step 6: Final answer
    x = 100,334.73

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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.