Home / 140.97-210.61-136.18

Finding the Fourth Proportional to 140.97, 210.61 and 136.18

Calculator

Solution

The fourth proportional to 140.97, 210.61 and 136.18 is: 203.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140.97 : 210.61 = 136.18 : x
  2. Step 2: Convert to fraction form
    140.97/210.61 = 136.18/x
  3. Step 3: Cross multiply
    140.97x = 210.61 × 136.18
  4. Step 4: Simplify right side
    140.97x = 28,680.87
  5. Step 5: Solve for x
    x = 28,680.87/140.97
  6. Step 6: Final answer
    x = 203.45

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.