Home / 192,631.80-288,942.30-87,450.60

Finding the Fourth Proportional to 192,631.80, 288,942.30 and 87,450.60

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Solution

The fourth proportional to 192,631.80, 288,942.30 and 87,450.60 is: 131,173.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,631.80 : 288,942.30 = 87,450.60 : x
  2. Step 2: Convert to fraction form
    192,631.80/288,942.30 = 87,450.60/x
  3. Step 3: Cross multiply
    192,631.80x = 288,942.30 × 87,450.60
  4. Step 4: Simplify right side
    192,631.80x = 25,268,177,500.38
  5. Step 5: Solve for x
    x = 25,268,177,500.38/192,631.80
  6. Step 6: Final answer
    x = 131,173.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.