Home / 151,936.32-209,620.80-88,221.72

Finding the Fourth Proportional to 151,936.32, 209,620.80 and 88,221.72

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Solution

The fourth proportional to 151,936.32, 209,620.80 and 88,221.72 is: 121,716.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,936.32 : 209,620.80 = 88,221.72 : x
  2. Step 2: Convert to fraction form
    151,936.32/209,620.80 = 88,221.72/x
  3. Step 3: Cross multiply
    151,936.32x = 209,620.80 × 88,221.72
  4. Step 4: Simplify right side
    151,936.32x = 18,493,107,523.78
  5. Step 5: Solve for x
    x = 18,493,107,523.78/151,936.32
  6. Step 6: Final answer
    x = 121,716.17

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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.