Home / 100,812.20-139,062.83-63,020.84

Finding the Fourth Proportional to 100,812.20, 139,062.83 and 63,020.84

Calculator

Solution

The fourth proportional to 100,812.20, 139,062.83 and 63,020.84 is: 86,932.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,812.20 : 139,062.83 = 63,020.84 : x
  2. Step 2: Convert to fraction form
    100,812.20/139,062.83 = 63,020.84/x
  3. Step 3: Cross multiply
    100,812.20x = 139,062.83 × 63,020.84
  4. Step 4: Simplify right side
    100,812.20x = 8,763,855,348.96
  5. Step 5: Solve for x
    x = 8,763,855,348.96/100,812.20
  6. Step 6: Final answer
    x = 86,932.49

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.