Home / 128,352.69-192,534.50-39,604.23

Finding the Fourth Proportional to 128,352.69, 192,534.50 and 39,604.23

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Solution

The fourth proportional to 128,352.69, 192,534.50 and 39,604.23 is: 59,408.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,352.69 : 192,534.50 = 39,604.23 : x
  2. Step 2: Convert to fraction form
    128,352.69/192,534.50 = 39,604.23/x
  3. Step 3: Cross multiply
    128,352.69x = 192,534.50 × 39,604.23
  4. Step 4: Simplify right side
    128,352.69x = 7,625,180,620.94
  5. Step 5: Solve for x
    x = 7,625,180,620.94/128,352.69
  6. Step 6: Final answer
    x = 59,408.03

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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.