Home / 103,188.53-142,207.36-80,491.57

Finding the Fourth Proportional to 103,188.53, 142,207.36 and 80,491.57

Calculator

Solution

The fourth proportional to 103,188.53, 142,207.36 and 80,491.57 is: 110,927.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,188.53 : 142,207.36 = 80,491.57 : x
  2. Step 2: Convert to fraction form
    103,188.53/142,207.36 = 80,491.57/x
  3. Step 3: Cross multiply
    103,188.53x = 142,207.36 × 80,491.57
  4. Step 4: Simplify right side
    103,188.53x = 11,446,493,115.21
  5. Step 5: Solve for x
    x = 11,446,493,115.21/103,188.53
  6. Step 6: Final answer
    x = 110,927.96

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.