Home / 131,279.54-181,166.83-74,694.56

Finding the Fourth Proportional to 131,279.54, 181,166.83 and 74,694.56

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Solution

The fourth proportional to 131,279.54, 181,166.83 and 74,694.56 is: 103,079.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,279.54 : 181,166.83 = 74,694.56 : x
  2. Step 2: Convert to fraction form
    131,279.54/181,166.83 = 74,694.56/x
  3. Step 3: Cross multiply
    131,279.54x = 181,166.83 × 74,694.56
  4. Step 4: Simplify right side
    131,279.54x = 13,532,175,560.87
  5. Step 5: Solve for x
    x = 13,532,175,560.87/131,279.54
  6. Step 6: Final answer
    x = 103,079.09

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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.