Home / 186.18-256.94-103.31

Finding the Fourth Proportional to 186.18, 256.94 and 103.31

Calculator

Solution

The fourth proportional to 186.18, 256.94 and 103.31 is: 142.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.18 : 256.94 = 103.31 : x
  2. Step 2: Convert to fraction form
    186.18/256.94 = 103.31/x
  3. Step 3: Cross multiply
    186.18x = 256.94 × 103.31
  4. Step 4: Simplify right side
    186.18x = 26,543.19
  5. Step 5: Solve for x
    x = 26,543.19/186.18
  6. Step 6: Final answer
    x = 142.57

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.