Home / 137.66-206.62-65.57

Finding the Fourth Proportional to 137.66, 206.62 and 65.57

Calculator

Solution

The fourth proportional to 137.66, 206.62 and 65.57 is: 98.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    137.66 : 206.62 = 65.57 : x
  2. Step 2: Convert to fraction form
    137.66/206.62 = 65.57/x
  3. Step 3: Cross multiply
    137.66x = 206.62 × 65.57
  4. Step 4: Simplify right side
    137.66x = 13,546.88
  5. Step 5: Solve for x
    x = 13,546.88/137.66
  6. Step 6: Final answer
    x = 98.41

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.