Home / 259,190.35-388,727.20-92,978.35

Finding the Fourth Proportional to 259,190.35, 388,727.20 and 92,978.35

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Solution

The fourth proportional to 259,190.35, 388,727.20 and 92,978.35 is: 139,446.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,190.35 : 388,727.20 = 92,978.35 : x
  2. Step 2: Convert to fraction form
    259,190.35/388,727.20 = 92,978.35/x
  3. Step 3: Cross multiply
    259,190.35x = 388,727.20 × 92,978.35
  4. Step 4: Simplify right side
    259,190.35x = 36,143,212,800.52
  5. Step 5: Solve for x
    x = 36,143,212,800.52/259,190.35
  6. Step 6: Final answer
    x = 139,446.60

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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.