Home / 202,768.56-279,727.61-131,171.66

Finding the Fourth Proportional to 202,768.56, 279,727.61 and 131,171.66

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Solution

The fourth proportional to 202,768.56, 279,727.61 and 131,171.66 is: 180,956.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,768.56 : 279,727.61 = 131,171.66 : x
  2. Step 2: Convert to fraction form
    202,768.56/279,727.61 = 131,171.66/x
  3. Step 3: Cross multiply
    202,768.56x = 279,727.61 × 131,171.66
  4. Step 4: Simplify right side
    202,768.56x = 36,692,332,897.04
  5. Step 5: Solve for x
    x = 36,692,332,897.04/202,768.56
  6. Step 6: Final answer
    x = 180,956.72

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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.