Home / 135.47-186.89-94.12

Finding the Fourth Proportional to 135.47, 186.89 and 94.12

Calculator

Solution

The fourth proportional to 135.47, 186.89 and 94.12 is: 129.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135.47 : 186.89 = 94.12 : x
  2. Step 2: Convert to fraction form
    135.47/186.89 = 94.12/x
  3. Step 3: Cross multiply
    135.47x = 186.89 × 94.12
  4. Step 4: Simplify right side
    135.47x = 17,590.32
  5. Step 5: Solve for x
    x = 17,590.32/135.47
  6. Step 6: Final answer
    x = 129.85

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.