Home / 142.29-213.37-70.07

Finding the Fourth Proportional to 142.29, 213.37 and 70.07

Calculator

Solution

The fourth proportional to 142.29, 213.37 and 70.07 is: 105.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    142.29 : 213.37 = 70.07 : x
  2. Step 2: Convert to fraction form
    142.29/213.37 = 70.07/x
  3. Step 3: Cross multiply
    142.29x = 213.37 × 70.07
  4. Step 4: Simplify right side
    142.29x = 14,949.59
  5. Step 5: Solve for x
    x = 14,949.59/142.29
  6. Step 6: Final answer
    x = 105.06

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.