Home / 143.34-214.90-73.88

Finding the Fourth Proportional to 143.34, 214.90 and 73.88

Calculator

Solution

The fourth proportional to 143.34, 214.90 and 73.88 is: 110.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    143.34 : 214.90 = 73.88 : x
  2. Step 2: Convert to fraction form
    143.34/214.90 = 73.88/x
  3. Step 3: Cross multiply
    143.34x = 214.90 × 73.88
  4. Step 4: Simplify right side
    143.34x = 15,876.81
  5. Step 5: Solve for x
    x = 15,876.81/143.34
  6. Step 6: Final answer
    x = 110.76

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.