Home / 130.75-196.13-66.63

Finding the Fourth Proportional to 130.75, 196.13 and 66.63

Calculator

Solution

The fourth proportional to 130.75, 196.13 and 66.63 is: 99.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.75 : 196.13 = 66.63 : x
  2. Step 2: Convert to fraction form
    130.75/196.13 = 66.63/x
  3. Step 3: Cross multiply
    130.75x = 196.13 × 66.63
  4. Step 4: Simplify right side
    130.75x = 13,068.14
  5. Step 5: Solve for x
    x = 13,068.14/130.75
  6. Step 6: Final answer
    x = 99.95

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.