Home / 128,593.55-192,819.86-39,822.41

Finding the Fourth Proportional to 128,593.55, 192,819.86 and 39,822.41

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Solution

The fourth proportional to 128,593.55, 192,819.86 and 39,822.41 is: 59,711.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,593.55 : 192,819.86 = 39,822.41 : x
  2. Step 2: Convert to fraction form
    128,593.55/192,819.86 = 39,822.41/x
  3. Step 3: Cross multiply
    128,593.55x = 192,819.86 × 39,822.41
  4. Step 4: Simplify right side
    128,593.55x = 7,678,551,521.06
  5. Step 5: Solve for x
    x = 7,678,551,521.06/128,593.55
  6. Step 6: Final answer
    x = 59,711.79

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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.