Home / 79,162.22-118,743.56-19,190.45

Finding the Fourth Proportional to 79,162.22, 118,743.56 and 19,190.45

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Solution

The fourth proportional to 79,162.22, 118,743.56 and 19,190.45 is: 28,785.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,162.22 : 118,743.56 = 19,190.45 : x
  2. Step 2: Convert to fraction form
    79,162.22/118,743.56 = 19,190.45/x
  3. Step 3: Cross multiply
    79,162.22x = 118,743.56 × 19,190.45
  4. Step 4: Simplify right side
    79,162.22x = 2,278,741,661.33
  5. Step 5: Solve for x
    x = 2,278,741,661.33/79,162.22
  6. Step 6: Final answer
    x = 28,785.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.