Home / 128,625.04-192,937.64-53,704.36

Finding the Fourth Proportional to 128,625.04, 192,937.64 and 53,704.36

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Solution

The fourth proportional to 128,625.04, 192,937.64 and 53,704.36 is: 80,556.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,625.04 : 192,937.64 = 53,704.36 : x
  2. Step 2: Convert to fraction form
    128,625.04/192,937.64 = 53,704.36/x
  3. Step 3: Cross multiply
    128,625.04x = 192,937.64 × 53,704.36
  4. Step 4: Simplify right side
    128,625.04x = 10,361,592,476.11
  5. Step 5: Solve for x
    x = 10,361,592,476.11/128,625.04
  6. Step 6: Final answer
    x = 80,556.57

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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.