Home / 101,183.45-139,633.65-55,860.62

Finding the Fourth Proportional to 101,183.45, 139,633.65 and 55,860.62

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Solution

The fourth proportional to 101,183.45, 139,633.65 and 55,860.62 is: 77,087.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,183.45 : 139,633.65 = 55,860.62 : x
  2. Step 2: Convert to fraction form
    101,183.45/139,633.65 = 55,860.62/x
  3. Step 3: Cross multiply
    101,183.45x = 139,633.65 × 55,860.62
  4. Step 4: Simplify right side
    101,183.45x = 7,800,021,563.69
  5. Step 5: Solve for x
    x = 7,800,021,563.69/101,183.45
  6. Step 6: Final answer
    x = 77,087.92

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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.