Finding the Fourth Proportional to 167,396.19, 231,096.70 and 129,071.75
Calculator
Solution
The fourth proportional to 167,396.19, 231,096.70 and 129,071.75 is: 178,188.37
Step by Step Solution
- Step 1: Write the proportion equation
167,396.19 : 231,096.70 = 129,071.75 : x - Step 2: Convert to fraction form
167,396.19/231,096.70 = 129,071.75/x - Step 3: Cross multiply
167,396.19x = 231,096.70 × 129,071.75 - Step 4: Simplify right side
167,396.19x = 29,828,053,768.05 - Step 5: Solve for x
x = 29,828,053,768.05/167,396.19 - Step 6: Final answer
x = 178,188.37
Related Problems
Find fourth proportional to 83,698.09, 115,548.35 and 64,535.87
Half scale
Find fourth proportional to 334,792.37, 462,193.39 and 258,143.49
Double scale
Find fourth proportional to 167,397.19, 231,098.08 and 129,072.75
Similar ratio
Find fourth proportional to 251,094.28, 346,645.04 and 193,607.62
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.