Home / 110.71-152.81-71.83

Finding the Fourth Proportional to 110.71, 152.81 and 71.83

Calculator

Solution

The fourth proportional to 110.71, 152.81 and 71.83 is: 99.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.71 : 152.81 = 71.83 : x
  2. Step 2: Convert to fraction form
    110.71/152.81 = 71.83/x
  3. Step 3: Cross multiply
    110.71x = 152.81 × 71.83
  4. Step 4: Simplify right side
    110.71x = 10,976.34
  5. Step 5: Solve for x
    x = 10,976.34/110.71
  6. Step 6: Final answer
    x = 99.14

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.