Finding the Fourth Proportional to 151,908.12, 209,651.02 and 91,509.26
Calculator
Solution
The fourth proportional to 151,908.12, 209,651.02 and 91,509.26 is: 126,293.50
Step by Step Solution
- Step 1: Write the proportion equation
151,908.12 : 209,651.02 = 91,509.26 : x - Step 2: Convert to fraction form
151,908.12/209,651.02 = 91,509.26/x - Step 3: Cross multiply
151,908.12x = 209,651.02 × 91,509.26 - Step 4: Simplify right side
151,908.12x = 19,185,008,421.42 - Step 5: Solve for x
x = 19,185,008,421.42/151,908.12 - Step 6: Final answer
x = 126,293.50
Related Problems
Find fourth proportional to 75,954.06, 104,825.51 and 45,754.63
Half scale
Find fourth proportional to 303,816.24, 419,302.04 and 183,018.51
Double scale
Find fourth proportional to 151,909.12, 209,652.40 and 91,510.26
Similar ratio
Find fourth proportional to 227,862.18, 314,476.53 and 137,263.88
1.5x scale
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.