Home / 121-166.98-69.26

Finding the Fourth Proportional to 121, 166.98 and 69.26

Calculator

Solution

The fourth proportional to 121, 166.98 and 69.26 is: 95.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    121 : 166.98 = 69.26 : x
  2. Step 2: Convert to fraction form
    121/166.98 = 69.26/x
  3. Step 3: Cross multiply
    121x = 166.98 × 69.26
  4. Step 4: Simplify right side
    121x = 11,565.03
  5. Step 5: Solve for x
    x = 11,565.03/121
  6. Step 6: Final answer
    x = 95.58

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.