Home / 151,229.64-208,684.86-87,571.56

Finding the Fourth Proportional to 151,229.64, 208,684.86 and 87,571.56

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Solution

The fourth proportional to 151,229.64, 208,684.86 and 87,571.56 is: 120,841.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,229.64 : 208,684.86 = 87,571.56 : x
  2. Step 2: Convert to fraction form
    151,229.64/208,684.86 = 87,571.56/x
  3. Step 3: Cross multiply
    151,229.64x = 208,684.86 × 87,571.56
  4. Step 4: Simplify right side
    151,229.64x = 18,274,858,738.58
  5. Step 5: Solve for x
    x = 18,274,858,738.58/151,229.64
  6. Step 6: Final answer
    x = 120,841.78

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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.