Home / 139,183.23-192,072.81-75,521.01

Finding the Fourth Proportional to 139,183.23, 192,072.81 and 75,521.01

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Solution

The fourth proportional to 139,183.23, 192,072.81 and 75,521.01 is: 104,218.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,183.23 : 192,072.81 = 75,521.01 : x
  2. Step 2: Convert to fraction form
    139,183.23/192,072.81 = 75,521.01/x
  3. Step 3: Cross multiply
    139,183.23x = 192,072.81 × 75,521.01
  4. Step 4: Simplify right side
    139,183.23x = 14,505,532,604.74
  5. Step 5: Solve for x
    x = 14,505,532,604.74/139,183.23
  6. Step 6: Final answer
    x = 104,218.97

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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.