Home / 117,839.24-162,678.30-79,799.84

Finding the Fourth Proportional to 117,839.24, 162,678.30 and 79,799.84

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Solution

The fourth proportional to 117,839.24, 162,678.30 and 79,799.84 is: 110,164.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,839.24 : 162,678.30 = 79,799.84 : x
  2. Step 2: Convert to fraction form
    117,839.24/162,678.30 = 79,799.84/x
  3. Step 3: Cross multiply
    117,839.24x = 162,678.30 × 79,799.84
  4. Step 4: Simplify right side
    117,839.24x = 12,981,702,311.47
  5. Step 5: Solve for x
    x = 12,981,702,311.47/117,839.24
  6. Step 6: Final answer
    x = 110,164.51

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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.