Home / 158,694.26-218,998.07-90,712.70

Finding the Fourth Proportional to 158,694.26, 218,998.07 and 90,712.70

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Solution

The fourth proportional to 158,694.26, 218,998.07 and 90,712.70 is: 125,183.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,694.26 : 218,998.07 = 90,712.70 : x
  2. Step 2: Convert to fraction form
    158,694.26/218,998.07 = 90,712.70/x
  3. Step 3: Cross multiply
    158,694.26x = 218,998.07 × 90,712.70
  4. Step 4: Simplify right side
    158,694.26x = 19,865,904,675.94
  5. Step 5: Solve for x
    x = 19,865,904,675.94/158,694.26
  6. Step 6: Final answer
    x = 125,183.52

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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.