Home / 269,161.20-403,741.80-128,847.60

Finding the Fourth Proportional to 269,161.20, 403,741.80 and 128,847.60

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Solution

The fourth proportional to 269,161.20, 403,741.80 and 128,847.60 is: 193,271.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,161.20 : 403,741.80 = 128,847.60 : x
  2. Step 2: Convert to fraction form
    269,161.20/403,741.80 = 128,847.60/x
  3. Step 3: Cross multiply
    269,161.20x = 403,741.80 × 128,847.60
  4. Step 4: Simplify right side
    269,161.20x = 52,021,161,949.68
  5. Step 5: Solve for x
    x = 52,021,161,949.68/269,161.20
  6. Step 6: Final answer
    x = 193,271.40

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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.