Home / 92.34-139.02-89.61

Finding the Fourth Proportional to 92.34, 139.02 and 89.61

Calculator

Solution

The fourth proportional to 92.34, 139.02 and 89.61 is: 134.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92.34 : 139.02 = 89.61 : x
  2. Step 2: Convert to fraction form
    92.34/139.02 = 89.61/x
  3. Step 3: Cross multiply
    92.34x = 139.02 × 89.61
  4. Step 4: Simplify right side
    92.34x = 12,456.72
  5. Step 5: Solve for x
    x = 12,456.72/92.34
  6. Step 6: Final answer
    x = 134.90

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.