Home / 136,022.92-187,729.15-76,418.44

Finding the Fourth Proportional to 136,022.92, 187,729.15 and 76,418.44

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Solution

The fourth proportional to 136,022.92, 187,729.15 and 76,418.44 is: 105,467.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,022.92 : 187,729.15 = 76,418.44 : x
  2. Step 2: Convert to fraction form
    136,022.92/187,729.15 = 76,418.44/x
  3. Step 3: Cross multiply
    136,022.92x = 187,729.15 × 76,418.44
  4. Step 4: Simplify right side
    136,022.92x = 14,345,968,785.53
  5. Step 5: Solve for x
    x = 14,345,968,785.53/136,022.92
  6. Step 6: Final answer
    x = 105,467.29

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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.