Home / 137.14-189.35-126.66

Finding the Fourth Proportional to 137.14, 189.35 and 126.66

Calculator

Solution

The fourth proportional to 137.14, 189.35 and 126.66 is: 174.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    137.14 : 189.35 = 126.66 : x
  2. Step 2: Convert to fraction form
    137.14/189.35 = 126.66/x
  3. Step 3: Cross multiply
    137.14x = 189.35 × 126.66
  4. Step 4: Simplify right side
    137.14x = 23,983.07
  5. Step 5: Solve for x
    x = 23,983.07/137.14
  6. Step 6: Final answer
    x = 174.88

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.