Home / 158,836.20-219,213.71-90,843.74

Finding the Fourth Proportional to 158,836.20, 219,213.71 and 90,843.74

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Solution

The fourth proportional to 158,836.20, 219,213.71 and 90,843.74 is: 125,375.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,836.20 : 219,213.71 = 90,843.74 : x
  2. Step 2: Convert to fraction form
    158,836.20/219,213.71 = 90,843.74/x
  3. Step 3: Cross multiply
    158,836.20x = 219,213.71 × 90,843.74
  4. Step 4: Simplify right side
    158,836.20x = 19,914,191,725.39
  5. Step 5: Solve for x
    x = 19,914,191,725.39/158,836.20
  6. Step 6: Final answer
    x = 125,375.65

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1.5x scale

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.