Home / 105,680.70-145,844.96-57,936.06

Finding the Fourth Proportional to 105,680.70, 145,844.96 and 57,936.06

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Solution

The fourth proportional to 105,680.70, 145,844.96 and 57,936.06 is: 79,954.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,680.70 : 145,844.96 = 57,936.06 : x
  2. Step 2: Convert to fraction form
    105,680.70/145,844.96 = 57,936.06/x
  3. Step 3: Cross multiply
    105,680.70x = 145,844.96 × 57,936.06
  4. Step 4: Simplify right side
    105,680.70x = 8,449,682,063.58
  5. Step 5: Solve for x
    x = 8,449,682,063.58/105,680.70
  6. Step 6: Final answer
    x = 79,954.83

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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.