Home / 128,114.48-192,067.84-53,290.60

Finding the Fourth Proportional to 128,114.48, 192,067.84 and 53,290.60

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Solution

The fourth proportional to 128,114.48, 192,067.84 and 53,290.60 is: 79,892.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,114.48 : 192,067.84 = 53,290.60 : x
  2. Step 2: Convert to fraction form
    128,114.48/192,067.84 = 53,290.60/x
  3. Step 3: Cross multiply
    128,114.48x = 192,067.84 × 53,290.60
  4. Step 4: Simplify right side
    128,114.48x = 10,235,410,434.30
  5. Step 5: Solve for x
    x = 10,235,410,434.30/128,114.48
  6. Step 6: Final answer
    x = 79,892.69

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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.