Home / 136,371.03-188,131.10-79,757.43

Finding the Fourth Proportional to 136,371.03, 188,131.10 and 79,757.43

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Solution

The fourth proportional to 136,371.03, 188,131.10 and 79,757.43 is: 110,029.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,371.03 : 188,131.10 = 79,757.43 : x
  2. Step 2: Convert to fraction form
    136,371.03/188,131.10 = 79,757.43/x
  3. Step 3: Cross multiply
    136,371.03x = 188,131.10 × 79,757.43
  4. Step 4: Simplify right side
    136,371.03x = 15,004,852,640.29
  5. Step 5: Solve for x
    x = 15,004,852,640.29/136,371.03
  6. Step 6: Final answer
    x = 110,029.62

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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.