Home / 100,496.45-138,684.51-55,175.19

Finding the Fourth Proportional to 100,496.45, 138,684.51 and 55,175.19

Calculator

Solution

The fourth proportional to 100,496.45, 138,684.51 and 55,175.19 is: 76,141.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,496.45 : 138,684.51 = 55,175.19 : x
  2. Step 2: Convert to fraction form
    100,496.45/138,684.51 = 55,175.19/x
  3. Step 3: Cross multiply
    100,496.45x = 138,684.51 × 55,175.19
  4. Step 4: Simplify right side
    100,496.45x = 7,651,944,189.31
  5. Step 5: Solve for x
    x = 7,651,944,189.31/100,496.45
  6. Step 6: Final answer
    x = 76,141.44

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.