Home / 131,819.24-181,928.64-80,822.94

Finding the Fourth Proportional to 131,819.24, 181,928.64 and 80,822.94

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Solution

The fourth proportional to 131,819.24, 181,928.64 and 80,822.94 is: 111,546.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,819.24 : 181,928.64 = 80,822.94 : x
  2. Step 2: Convert to fraction form
    131,819.24/181,928.64 = 80,822.94/x
  3. Step 3: Cross multiply
    131,819.24x = 181,928.64 × 80,822.94
  4. Step 4: Simplify right side
    131,819.24x = 14,704,007,555.00
  5. Step 5: Solve for x
    x = 14,704,007,555.00/131,819.24
  6. Step 6: Final answer
    x = 111,546.75

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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.