Home / 136,010.82-187,778.55-87,696.19

Finding the Fourth Proportional to 136,010.82, 187,778.55 and 87,696.19

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Solution

The fourth proportional to 136,010.82, 187,778.55 and 87,696.19 is: 121,074.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,010.82 : 187,778.55 = 87,696.19 : x
  2. Step 2: Convert to fraction form
    136,010.82/187,778.55 = 87,696.19/x
  3. Step 3: Cross multiply
    136,010.82x = 187,778.55 × 87,696.19
  4. Step 4: Simplify right side
    136,010.82x = 16,467,464,490.44
  5. Step 5: Solve for x
    x = 16,467,464,490.44/136,010.82
  6. Step 6: Final answer
    x = 121,074.66

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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.