Home / 113.70-170.50-48.69

Finding the Fourth Proportional to 113.70, 170.50 and 48.69

Calculator

Solution

The fourth proportional to 113.70, 170.50 and 48.69 is: 73.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    113.70 : 170.50 = 48.69 : x
  2. Step 2: Convert to fraction form
    113.70/170.50 = 48.69/x
  3. Step 3: Cross multiply
    113.70x = 170.50 × 48.69
  4. Step 4: Simplify right side
    113.70x = 8,301.95
  5. Step 5: Solve for x
    x = 8,301.95/113.70
  6. Step 6: Final answer
    x = 73.02

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.