Home / 190,647.78-262,854.55-139,571.83

Finding the Fourth Proportional to 190,647.78, 262,854.55 and 139,571.83

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Solution

The fourth proportional to 190,647.78, 262,854.55 and 139,571.83 is: 192,433.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,647.78 : 262,854.55 = 139,571.83 : x
  2. Step 2: Convert to fraction form
    190,647.78/262,854.55 = 139,571.83/x
  3. Step 3: Cross multiply
    190,647.78x = 262,854.55 × 139,571.83
  4. Step 4: Simplify right side
    190,647.78x = 36,687,089,869.47
  5. Step 5: Solve for x
    x = 36,687,089,869.47/190,647.78
  6. Step 6: Final answer
    x = 192,433.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.