Home / 196,805.20-295,353.60-78,561.40

Finding the Fourth Proportional to 196,805.20, 295,353.60 and 78,561.40

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Solution

The fourth proportional to 196,805.20, 295,353.60 and 78,561.40 is: 117,900.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,805.20 : 295,353.60 = 78,561.40 : x
  2. Step 2: Convert to fraction form
    196,805.20/295,353.60 = 78,561.40/x
  3. Step 3: Cross multiply
    196,805.20x = 295,353.60 × 78,561.40
  4. Step 4: Simplify right side
    196,805.20x = 23,203,392,311.04
  5. Step 5: Solve for x
    x = 23,203,392,311.04/196,805.20
  6. Step 6: Final answer
    x = 117,900.30

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1.5x scale

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.