Home / 139,190.54-192,266.07-106,728.17

Finding the Fourth Proportional to 139,190.54, 192,266.07 and 106,728.17

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Solution

The fourth proportional to 139,190.54, 192,266.07 and 106,728.17 is: 147,425.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,190.54 : 192,266.07 = 106,728.17 : x
  2. Step 2: Convert to fraction form
    139,190.54/192,266.07 = 106,728.17/x
  3. Step 3: Cross multiply
    139,190.54x = 192,266.07 × 106,728.17
  4. Step 4: Simplify right side
    139,190.54x = 20,520,205,804.19
  5. Step 5: Solve for x
    x = 20,520,205,804.19/139,190.54
  6. Step 6: Final answer
    x = 147,425.29

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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.