Home / 143.19-214.74-66.08

Finding the Fourth Proportional to 143.19, 214.74 and 66.08

Calculator

Solution

The fourth proportional to 143.19, 214.74 and 66.08 is: 99.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143.19 : 214.74 = 66.08 : x
  2. Step 2: Convert to fraction form
    143.19/214.74 = 66.08/x
  3. Step 3: Cross multiply
    143.19x = 214.74 × 66.08
  4. Step 4: Simplify right side
    143.19x = 14,190.56
  5. Step 5: Solve for x
    x = 14,190.56/143.19
  6. Step 6: Final answer
    x = 99.10

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.