Home / 123.42-170.49-110.34

Finding the Fourth Proportional to 123.42, 170.49 and 110.34

Calculator

Solution

The fourth proportional to 123.42, 170.49 and 110.34 is: 152.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123.42 : 170.49 = 110.34 : x
  2. Step 2: Convert to fraction form
    123.42/170.49 = 110.34/x
  3. Step 3: Cross multiply
    123.42x = 170.49 × 110.34
  4. Step 4: Simplify right side
    123.42x = 18,811.87
  5. Step 5: Solve for x
    x = 18,811.87/123.42
  6. Step 6: Final answer
    x = 152.42

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.