Home / 135,821.20-203,731.80-100,829.20

Finding the Fourth Proportional to 135,821.20, 203,731.80 and 100,829.20

Calculator

Solution

The fourth proportional to 135,821.20, 203,731.80 and 100,829.20 is: 151,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,821.20 : 203,731.80 = 100,829.20 : x
  2. Step 2: Convert to fraction form
    135,821.20/203,731.80 = 100,829.20/x
  3. Step 3: Cross multiply
    135,821.20x = 203,731.80 × 100,829.20
  4. Step 4: Simplify right side
    135,821.20x = 20,542,114,408.56
  5. Step 5: Solve for x
    x = 20,542,114,408.56/135,821.20
  6. Step 6: Final answer
    x = 151,243.80

Related Problems

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.