Home / 110,939.20-166,408.80-91,256.20

Finding the Fourth Proportional to 110,939.20, 166,408.80 and 91,256.20

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Solution

The fourth proportional to 110,939.20, 166,408.80 and 91,256.20 is: 136,884.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,939.20 : 166,408.80 = 91,256.20 : x
  2. Step 2: Convert to fraction form
    110,939.20/166,408.80 = 91,256.20/x
  3. Step 3: Cross multiply
    110,939.20x = 166,408.80 × 91,256.20
  4. Step 4: Simplify right side
    110,939.20x = 15,185,834,734.56
  5. Step 5: Solve for x
    x = 15,185,834,734.56/110,939.20
  6. Step 6: Final answer
    x = 136,884.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.