Home / 129.70-194.55-48.53

Finding the Fourth Proportional to 129.70, 194.55 and 48.53

Calculator

Solution

The fourth proportional to 129.70, 194.55 and 48.53 is: 72.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129.70 : 194.55 = 48.53 : x
  2. Step 2: Convert to fraction form
    129.70/194.55 = 48.53/x
  3. Step 3: Cross multiply
    129.70x = 194.55 × 48.53
  4. Step 4: Simplify right side
    129.70x = 9,441.51
  5. Step 5: Solve for x
    x = 9,441.51/129.70
  6. Step 6: Final answer
    x = 72.80

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.