Home / 100,665.20-150,997.20-25,785.20

Finding the Fourth Proportional to 100,665.20, 150,997.20 and 25,785.20

Calculator

Solution

The fourth proportional to 100,665.20, 150,997.20 and 25,785.20 is: 38,677.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,665.20 : 150,997.20 = 25,785.20 : x
  2. Step 2: Convert to fraction form
    100,665.20/150,997.20 = 25,785.20/x
  3. Step 3: Cross multiply
    100,665.20x = 150,997.20 × 25,785.20
  4. Step 4: Simplify right side
    100,665.20x = 3,893,493,001.44
  5. Step 5: Solve for x
    x = 3,893,493,001.44/100,665.20
  6. Step 6: Final answer
    x = 38,677.65

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.