Home / 128,333.22-192,548.99-53,433.24

Finding the Fourth Proportional to 128,333.22, 192,548.99 and 53,433.24

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Solution

The fourth proportional to 128,333.22, 192,548.99 and 53,433.24 is: 80,170.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,333.22 : 192,548.99 = 53,433.24 : x
  2. Step 2: Convert to fraction form
    128,333.22/192,548.99 = 53,433.24/x
  3. Step 3: Cross multiply
    128,333.22x = 192,548.99 × 53,433.24
  4. Step 4: Simplify right side
    128,333.22x = 10,288,516,394.43
  5. Step 5: Solve for x
    x = 10,288,516,394.43/128,333.22
  6. Step 6: Final answer
    x = 80,170.33

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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.