Home / 136,334.55-188,092.96-78,942.54

Finding the Fourth Proportional to 136,334.55, 188,092.96 and 78,942.54

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Solution

The fourth proportional to 136,334.55, 188,092.96 and 78,942.54 is: 108,912.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,334.55 : 188,092.96 = 78,942.54 : x
  2. Step 2: Convert to fraction form
    136,334.55/188,092.96 = 78,942.54/x
  3. Step 3: Cross multiply
    136,334.55x = 188,092.96 × 78,942.54
  4. Step 4: Simplify right side
    136,334.55x = 14,848,536,018.52
  5. Step 5: Solve for x
    x = 14,848,536,018.52/136,334.55
  6. Step 6: Final answer
    x = 108,912.50

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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.