Home / 104.64-156.92-61.31

Finding the Fourth Proportional to 104.64, 156.92 and 61.31

Calculator

Solution

The fourth proportional to 104.64, 156.92 and 61.31 is: 91.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    104.64 : 156.92 = 61.31 : x
  2. Step 2: Convert to fraction form
    104.64/156.92 = 61.31/x
  3. Step 3: Cross multiply
    104.64x = 156.92 × 61.31
  4. Step 4: Simplify right side
    104.64x = 9,619.67
  5. Step 5: Solve for x
    x = 9,619.67/104.64
  6. Step 6: Final answer
    x = 91.93

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.