Finding the Fourth Proportional to 117,905.40, 176,858.10 and 87,967.80
Calculator
Solution
The fourth proportional to 117,905.40, 176,858.10 and 87,967.80 is: 131,951.70
Step by Step Solution
- Step 1: Write the proportion equation
117,905.40 : 176,858.10 = 87,967.80 : x - Step 2: Convert to fraction form
117,905.40/176,858.10 = 87,967.80/x - Step 3: Cross multiply
117,905.40x = 176,858.10 × 87,967.80 - Step 4: Simplify right side
117,905.40x = 15,557,817,969.18 - Step 5: Solve for x
x = 15,557,817,969.18/117,905.40 - Step 6: Final answer
x = 131,951.70
Related Problems
Find fourth proportional to 58,952.70, 88,429.05 and 43,983.90
Half scale
Find fourth proportional to 235,810.80, 353,716.20 and 175,935.60
Double scale
Find fourth proportional to 117,906.40, 176,859.60 and 87,968.80
Similar ratio
Find fourth proportional to 176,858.10, 265,287.15 and 131,951.70
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.