Home / 136,945,144.35-188,874,104.79-120,389,871.45

Finding the Fourth Proportional to 136,945,144.35, 188,874,104.79 and 120,389,871.45

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Solution

The fourth proportional to 136,945,144.35, 188,874,104.79 and 120,389,871.45 is: 166,041,149.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,945,144.35 : 188,874,104.79 = 120,389,871.45 : x
  2. Step 2: Convert to fraction form
    136,945,144.35/188,874,104.79 = 120,389,871.45/x
  3. Step 3: Cross multiply
    136,945,144.35x = 188,874,104.79 × 120,389,871.45
  4. Step 4: Simplify right side
    136,945,144.35x = 22,738,529,195,901,928
  5. Step 5: Solve for x
    x = 22,738,529,195,901,928/136,945,144.35
  6. Step 6: Final answer
    x = 166,041,149.57

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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.