Home / 136,958.57-188,997.38-79,595.18

Finding the Fourth Proportional to 136,958.57, 188,997.38 and 79,595.18

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Solution

The fourth proportional to 136,958.57, 188,997.38 and 79,595.18 is: 109,838.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,958.57 : 188,997.38 = 79,595.18 : x
  2. Step 2: Convert to fraction form
    136,958.57/188,997.38 = 79,595.18/x
  3. Step 3: Cross multiply
    136,958.57x = 188,997.38 × 79,595.18
  4. Step 4: Simplify right side
    136,958.57x = 15,043,280,704.43
  5. Step 5: Solve for x
    x = 15,043,280,704.43/136,958.57
  6. Step 6: Final answer
    x = 109,838.19

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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.