Finding the Fourth Proportional to 110,421.80, 165,632.70 and 51,237.80
Calculator
Solution
The fourth proportional to 110,421.80, 165,632.70 and 51,237.80 is: 76,856.70
Step by Step Solution
- Step 1: Write the proportion equation
110,421.80 : 165,632.70 = 51,237.80 : x - Step 2: Convert to fraction form
110,421.80/165,632.70 = 51,237.80/x - Step 3: Cross multiply
110,421.80x = 165,632.70 × 51,237.80 - Step 4: Simplify right side
110,421.80x = 8,486,655,156.06 - Step 5: Solve for x
x = 8,486,655,156.06/110,421.80 - Step 6: Final answer
x = 76,856.70
Related Problems
Find fourth proportional to 55,210.90, 82,816.35 and 25,618.90
Half scale
Find fourth proportional to 220,843.60, 331,265.40 and 102,475.60
Double scale
Find fourth proportional to 110,422.80, 165,634.20 and 51,238.80
Similar ratio
Find fourth proportional to 165,632.70, 248,449.05 and 76,856.70
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.