Home / 103.28-142.54-59.60

Finding the Fourth Proportional to 103.28, 142.54 and 59.60

Calculator

Solution

The fourth proportional to 103.28, 142.54 and 59.60 is: 82.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103.28 : 142.54 = 59.60 : x
  2. Step 2: Convert to fraction form
    103.28/142.54 = 59.60/x
  3. Step 3: Cross multiply
    103.28x = 142.54 × 59.60
  4. Step 4: Simplify right side
    103.28x = 8,495.38
  5. Step 5: Solve for x
    x = 8,495.38/103.28
  6. Step 6: Final answer
    x = 82.26

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.