Finding the Fourth Proportional to 162,998.31, 224,937.51 and 91,378.32
Calculator
Solution
The fourth proportional to 162,998.31, 224,937.51 and 91,378.32 is: 126,101.99
Step by Step Solution
- Step 1: Write the proportion equation
162,998.31 : 224,937.51 = 91,378.32 : x - Step 2: Convert to fraction form
162,998.31/224,937.51 = 91,378.32/x - Step 3: Cross multiply
162,998.31x = 224,937.51 × 91,378.32 - Step 4: Simplify right side
162,998.31x = 20,554,411,768.78 - Step 5: Solve for x
x = 20,554,411,768.78/162,998.31 - Step 6: Final answer
x = 126,101.99
Related Problems
Find fourth proportional to 81,499.16, 112,468.76 and 45,689.16
Half scale
Find fourth proportional to 325,996.62, 449,875.02 and 182,756.64
Double scale
Find fourth proportional to 162,999.31, 224,938.89 and 91,379.32
Similar ratio
Find fourth proportional to 244,497.47, 337,406.27 and 137,067.48
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.