Home / 117,694.21-162,453.60-79,990.33

Finding the Fourth Proportional to 117,694.21, 162,453.60 and 79,990.33

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Solution

The fourth proportional to 117,694.21, 162,453.60 and 79,990.33 is: 110,410.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,694.21 : 162,453.60 = 79,990.33 : x
  2. Step 2: Convert to fraction form
    117,694.21/162,453.60 = 79,990.33/x
  3. Step 3: Cross multiply
    117,694.21x = 162,453.60 × 79,990.33
  4. Step 4: Simplify right side
    117,694.21x = 12,994,717,073.69
  5. Step 5: Solve for x
    x = 12,994,717,073.69/117,694.21
  6. Step 6: Final answer
    x = 110,410.84

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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.