Home / 101.00-139.38-59.55

Finding the Fourth Proportional to 101.00, 139.38 and 59.55

Calculator

Solution

The fourth proportional to 101.00, 139.38 and 59.55 is: 82.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.00 : 139.38 = 59.55 : x
  2. Step 2: Convert to fraction form
    101.00/139.38 = 59.55/x
  3. Step 3: Cross multiply
    101.00x = 139.38 × 59.55
  4. Step 4: Simplify right side
    101.00x = 8,300.12
  5. Step 5: Solve for x
    x = 8,300.12/101.00
  6. Step 6: Final answer
    x = 82.18

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.