Finding the Fourth Proportional to 151,035.10, 208,405.11 and 87,378.82
Calculator
Solution
The fourth proportional to 151,035.10, 208,405.11 and 87,378.82 is: 120,569.28
Step by Step Solution
- Step 1: Write the proportion equation
151,035.10 : 208,405.11 = 87,378.82 : x - Step 2: Convert to fraction form
151,035.10/208,405.11 = 87,378.82/x - Step 3: Cross multiply
151,035.10x = 208,405.11 × 87,378.82 - Step 4: Simplify right side
151,035.10x = 18,210,192,593.77 - Step 5: Solve for x
x = 18,210,192,593.77/151,035.10 - Step 6: Final answer
x = 120,569.28
Related Problems
Find fourth proportional to 75,517.55, 104,202.56 and 43,689.41
Half scale
Find fourth proportional to 302,070.20, 416,810.22 and 174,757.64
Double scale
Find fourth proportional to 151,036.10, 208,406.49 and 87,379.82
Similar ratio
Find fourth proportional to 226,552.65, 312,607.67 and 131,068.23
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.