Home / 129,456.64-178,607.44-105,542.20

Finding the Fourth Proportional to 129,456.64, 178,607.44 and 105,542.20

Calculator

Solution

The fourth proportional to 129,456.64, 178,607.44 and 105,542.20 is: 145,613.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,456.64 : 178,607.44 = 105,542.20 : x
  2. Step 2: Convert to fraction form
    129,456.64/178,607.44 = 105,542.20/x
  3. Step 3: Cross multiply
    129,456.64x = 178,607.44 × 105,542.20
  4. Step 4: Simplify right side
    129,456.64x = 18,850,622,153.97
  5. Step 5: Solve for x
    x = 18,850,622,153.97/129,456.64
  6. Step 6: Final answer
    x = 145,613.41

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.