Home / 126.02-188.75-65.21

Finding the Fourth Proportional to 126.02, 188.75 and 65.21

Calculator

Solution

The fourth proportional to 126.02, 188.75 and 65.21 is: 97.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126.02 : 188.75 = 65.21 : x
  2. Step 2: Convert to fraction form
    126.02/188.75 = 65.21/x
  3. Step 3: Cross multiply
    126.02x = 188.75 × 65.21
  4. Step 4: Simplify right side
    126.02x = 12,307.12
  5. Step 5: Solve for x
    x = 12,307.12/126.02
  6. Step 6: Final answer
    x = 97.66

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.