Finding the Fourth Proportional to 119,317.39, 178,586.64 and 87,719.09
Calculator
Solution
The fourth proportional to 119,317.39, 178,586.64 and 87,719.09 is: 131,292.32
Step by Step Solution
- Step 1: Write the proportion equation
119,317.39 : 178,586.64 = 87,719.09 : x - Step 2: Convert to fraction form
119,317.39/178,586.64 = 87,719.09/x - Step 3: Cross multiply
119,317.39x = 178,586.64 × 87,719.09 - Step 4: Simplify right side
119,317.39x = 15,665,456,654.02 - Step 5: Solve for x
x = 15,665,456,654.02/119,317.39 - Step 6: Final answer
x = 131,292.32
Related Problems
Find fourth proportional to 59,658.69, 89,293.32 and 43,859.54
Half scale
Find fourth proportional to 238,634.78, 357,173.28 and 175,438.17
Double scale
Find fourth proportional to 119,318.39, 178,588.14 and 87,720.09
Similar ratio
Find fourth proportional to 178,976.08, 267,879.96 and 131,578.63
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.