Home / 136,791.44-188,776.68-79,426.32

Finding the Fourth Proportional to 136,791.44, 188,776.68 and 79,426.32

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Solution

The fourth proportional to 136,791.44, 188,776.68 and 79,426.32 is: 109,610.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,791.44 : 188,776.68 = 79,426.32 : x
  2. Step 2: Convert to fraction form
    136,791.44/188,776.68 = 79,426.32/x
  3. Step 3: Cross multiply
    136,791.44x = 188,776.68 × 79,426.32
  4. Step 4: Simplify right side
    136,791.44x = 14,993,836,994.22
  5. Step 5: Solve for x
    x = 14,993,836,994.22/136,791.44
  6. Step 6: Final answer
    x = 109,610.93

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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.