Home / 207,823.47-311,724-81,486.42

Finding the Fourth Proportional to 207,823.47, 311,724 and 81,486.42

Calculator

Solution

The fourth proportional to 207,823.47, 311,724 and 81,486.42 is: 122,225.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,823.47 : 311,724 = 81,486.42 : x
  2. Step 2: Convert to fraction form
    207,823.47/311,724 = 81,486.42/x
  3. Step 3: Cross multiply
    207,823.47x = 311,724 × 81,486.42
  4. Step 4: Simplify right side
    207,823.47x = 25,401,272,788.08
  5. Step 5: Solve for x
    x = 25,401,272,788.08/207,823.47
  6. Step 6: Final answer
    x = 122,225.24

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.