Home / 100,225.78-138,306.62-54,903.96

Finding the Fourth Proportional to 100,225.78, 138,306.62 and 54,903.96

Calculator

Solution

The fourth proportional to 100,225.78, 138,306.62 and 54,903.96 is: 75,764.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,225.78 : 138,306.62 = 54,903.96 : x
  2. Step 2: Convert to fraction form
    100,225.78/138,306.62 = 54,903.96/x
  3. Step 3: Cross multiply
    100,225.78x = 138,306.62 × 54,903.96
  4. Step 4: Simplify right side
    100,225.78x = 7,593,581,132.22
  5. Step 5: Solve for x
    x = 7,593,581,132.22/100,225.78
  6. Step 6: Final answer
    x = 75,764.75

Related Problems

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.