Home / 196,670.40-294,811.20-78,183.60

Finding the Fourth Proportional to 196,670.40, 294,811.20 and 78,183.60

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Solution

The fourth proportional to 196,670.40, 294,811.20 and 78,183.60 is: 117,198.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,670.40 : 294,811.20 = 78,183.60 : x
  2. Step 2: Convert to fraction form
    196,670.40/294,811.20 = 78,183.60/x
  3. Step 3: Cross multiply
    196,670.40x = 294,811.20 × 78,183.60
  4. Step 4: Simplify right side
    196,670.40x = 23,049,400,936.32
  5. Step 5: Solve for x
    x = 23,049,400,936.32/196,670.40
  6. Step 6: Final answer
    x = 117,198.12

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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.