Home / 101,245.10-139,717.56-55,926

Finding the Fourth Proportional to 101,245.10, 139,717.56 and 55,926

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Solution

The fourth proportional to 101,245.10, 139,717.56 and 55,926 is: 77,177.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,245.10 : 139,717.56 = 55,926 : x
  2. Step 2: Convert to fraction form
    101,245.10/139,717.56 = 55,926/x
  3. Step 3: Cross multiply
    101,245.10x = 139,717.56 × 55,926
  4. Step 4: Simplify right side
    101,245.10x = 7,813,844,260.56
  5. Step 5: Solve for x
    x = 7,813,844,260.56/101,245.10
  6. Step 6: Final answer
    x = 77,177.51

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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.