Home / 100.82-151.27-40.00

Finding the Fourth Proportional to 100.82, 151.27 and 40.00

Calculator

Solution

The fourth proportional to 100.82, 151.27 and 40.00 is: 60.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    100.82 : 151.27 = 40.00 : x
  2. Step 2: Convert to fraction form
    100.82/151.27 = 40.00/x
  3. Step 3: Cross multiply
    100.82x = 151.27 × 40.00
  4. Step 4: Simplify right side
    100.82x = 6,050.04
  5. Step 5: Solve for x
    x = 6,050.04/100.82
  6. Step 6: Final answer
    x = 60.01

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.