Home / 190,795.12-263,321.52-115,343.44

Finding the Fourth Proportional to 190,795.12, 263,321.52 and 115,343.44

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Solution

The fourth proportional to 190,795.12, 263,321.52 and 115,343.44 is: 159,188.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,795.12 : 263,321.52 = 115,343.44 : x
  2. Step 2: Convert to fraction form
    190,795.12/263,321.52 = 115,343.44/x
  3. Step 3: Cross multiply
    190,795.12x = 263,321.52 × 115,343.44
  4. Step 4: Simplify right side
    190,795.12x = 30,372,409,942.83
  5. Step 5: Solve for x
    x = 30,372,409,942.83/190,795.12
  6. Step 6: Final answer
    x = 159,188.61

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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.