Home / 197,091.10-295,709.55-78,847.30

Finding the Fourth Proportional to 197,091.10, 295,709.55 and 78,847.30

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Solution

The fourth proportional to 197,091.10, 295,709.55 and 78,847.30 is: 118,300.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,091.10 : 295,709.55 = 78,847.30 : x
  2. Step 2: Convert to fraction form
    197,091.10/295,709.55 = 78,847.30/x
  3. Step 3: Cross multiply
    197,091.10x = 295,709.55 × 78,847.30
  4. Step 4: Simplify right side
    197,091.10x = 23,315,899,601.72
  5. Step 5: Solve for x
    x = 23,315,899,601.72/197,091.10
  6. Step 6: Final answer
    x = 118,300.11

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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.