Home / 196,865.28-295,279.20-78,504.96

Finding the Fourth Proportional to 196,865.28, 295,279.20 and 78,504.96

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Solution

The fourth proportional to 196,865.28, 295,279.20 and 78,504.96 is: 117,749.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,865.28 : 295,279.20 = 78,504.96 : x
  2. Step 2: Convert to fraction form
    196,865.28/295,279.20 = 78,504.96/x
  3. Step 3: Cross multiply
    196,865.28x = 295,279.20 × 78,504.96
  4. Step 4: Simplify right side
    196,865.28x = 23,180,881,784.83
  5. Step 5: Solve for x
    x = 23,180,881,784.83/196,865.28
  6. Step 6: Final answer
    x = 117,749.97

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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.