Home / 129.57-178.93-96.77

Finding the Fourth Proportional to 129.57, 178.93 and 96.77

Calculator

Solution

The fourth proportional to 129.57, 178.93 and 96.77 is: 133.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    129.57 : 178.93 = 96.77 : x
  2. Step 2: Convert to fraction form
    129.57/178.93 = 96.77/x
  3. Step 3: Cross multiply
    129.57x = 178.93 × 96.77
  4. Step 4: Simplify right side
    129.57x = 17,313.68
  5. Step 5: Solve for x
    x = 17,313.68/129.57
  6. Step 6: Final answer
    x = 133.62

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.