Home / 136,135.83-187,839.91-79,536.27

Finding the Fourth Proportional to 136,135.83, 187,839.91 and 79,536.27

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Solution

The fourth proportional to 136,135.83, 187,839.91 and 79,536.27 is: 109,743.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,135.83 : 187,839.91 = 79,536.27 : x
  2. Step 2: Convert to fraction form
    136,135.83/187,839.91 = 79,536.27/x
  3. Step 3: Cross multiply
    136,135.83x = 187,839.91 × 79,536.27
  4. Step 4: Simplify right side
    136,135.83x = 14,940,085,798.54
  5. Step 5: Solve for x
    x = 14,940,085,798.54/136,135.83
  6. Step 6: Final answer
    x = 109,743.97

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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.