Home / 100,430.64-150,660-33,889.95

Finding the Fourth Proportional to 100,430.64, 150,660 and 33,889.95

Calculator

Solution

The fourth proportional to 100,430.64, 150,660 and 33,889.95 is: 50,839.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,430.64 : 150,660 = 33,889.95 : x
  2. Step 2: Convert to fraction form
    100,430.64/150,660 = 33,889.95/x
  3. Step 3: Cross multiply
    100,430.64x = 150,660 × 33,889.95
  4. Step 4: Simplify right side
    100,430.64x = 5,105,859,867
  5. Step 5: Solve for x
    x = 5,105,859,867/100,430.64
  6. Step 6: Final answer
    x = 50,839.66

Related Problems

Find fourth proportional to 50,215.32, 75,330 and 16,944.98
Half scale
Find fourth proportional to 200,861.28, 301,320 and 67,779.90
Double scale
Find fourth proportional to 100,431.64, 150,661.50 and 33,890.95
Similar ratio
Find fourth proportional to 150,645.96, 225,990 and 50,834.93
1.5x scale

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.