Home / 121,439.25-167,586.17-71,138.25

Finding the Fourth Proportional to 121,439.25, 167,586.17 and 71,138.25

Calculator

Solution

The fourth proportional to 121,439.25, 167,586.17 and 71,138.25 is: 98,170.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,439.25 : 167,586.17 = 71,138.25 : x
  2. Step 2: Convert to fraction form
    121,439.25/167,586.17 = 71,138.25/x
  3. Step 3: Cross multiply
    121,439.25x = 167,586.17 × 71,138.25
  4. Step 4: Simplify right side
    121,439.25x = 11,921,786,502.31
  5. Step 5: Solve for x
    x = 11,921,786,502.31/121,439.25
  6. Step 6: Final answer
    x = 98,170.79

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.