Home / 159,769.09-220,500.87-91,785.94

Finding the Fourth Proportional to 159,769.09, 220,500.87 and 91,785.94

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Solution

The fourth proportional to 159,769.09, 220,500.87 and 91,785.94 is: 126,675.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,769.09 : 220,500.87 = 91,785.94 : x
  2. Step 2: Convert to fraction form
    159,769.09/220,500.87 = 91,785.94/x
  3. Step 3: Cross multiply
    159,769.09x = 220,500.87 × 91,785.94
  4. Step 4: Simplify right side
    159,769.09x = 20,238,879,072.52
  5. Step 5: Solve for x
    x = 20,238,879,072.52/159,769.09
  6. Step 6: Final answer
    x = 126,675.81

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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.