Home / 155.64-233.50-128.46

Finding the Fourth Proportional to 155.64, 233.50 and 128.46

Calculator

Solution

The fourth proportional to 155.64, 233.50 and 128.46 is: 192.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.64 : 233.50 = 128.46 : x
  2. Step 2: Convert to fraction form
    155.64/233.50 = 128.46/x
  3. Step 3: Cross multiply
    155.64x = 233.50 × 128.46
  4. Step 4: Simplify right side
    155.64x = 29,995.41
  5. Step 5: Solve for x
    x = 29,995.41/155.64
  6. Step 6: Final answer
    x = 192.72

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.