Home / 139,233.54-192,142.44-75,571.41

Finding the Fourth Proportional to 139,233.54, 192,142.44 and 75,571.41

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Solution

The fourth proportional to 139,233.54, 192,142.44 and 75,571.41 is: 104,288.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,233.54 : 192,142.44 = 75,571.41 : x
  2. Step 2: Convert to fraction form
    139,233.54/192,142.44 = 75,571.41/x
  3. Step 3: Cross multiply
    139,233.54x = 192,142.44 × 75,571.41
  4. Step 4: Simplify right side
    139,233.54x = 14,520,475,111.64
  5. Step 5: Solve for x
    x = 14,520,475,111.64/139,233.54
  6. Step 6: Final answer
    x = 104,288.63

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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.