Finding the Fourth Proportional to 164,557.70, 246,739.35 and 85,825.70
Calculator
Solution
The fourth proportional to 164,557.70, 246,739.35 and 85,825.70 is: 128,687.85
Step by Step Solution
- Step 1: Write the proportion equation
164,557.70 : 246,739.35 = 85,825.70 : x - Step 2: Convert to fraction form
164,557.70/246,739.35 = 85,825.70/x - Step 3: Cross multiply
164,557.70x = 246,739.35 × 85,825.70 - Step 4: Simplify right side
164,557.70x = 21,176,577,431.30 - Step 5: Solve for x
x = 21,176,577,431.30/164,557.70 - Step 6: Final answer
x = 128,687.85
Related Problems
Find fourth proportional to 82,278.85, 123,369.68 and 42,912.85
Half scale
Find fourth proportional to 329,115.40, 493,478.70 and 171,651.40
Double scale
Find fourth proportional to 164,558.70, 246,740.85 and 85,826.70
Similar ratio
Find fourth proportional to 246,836.55, 370,109.03 and 128,738.55
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.