Home / 131,538.56-181,546.92-74,195.48

Finding the Fourth Proportional to 131,538.56, 181,546.92 and 74,195.48

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Solution

The fourth proportional to 131,538.56, 181,546.92 and 74,195.48 is: 102,403.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,538.56 : 181,546.92 = 74,195.48 : x
  2. Step 2: Convert to fraction form
    131,538.56/181,546.92 = 74,195.48/x
  3. Step 3: Cross multiply
    131,538.56x = 181,546.92 × 74,195.48
  4. Step 4: Simplify right side
    131,538.56x = 13,469,960,871.92
  5. Step 5: Solve for x
    x = 13,469,960,871.92/131,538.56
  6. Step 6: Final answer
    x = 102,403.13

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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.