Finding the Fourth Proportional to 151,889.70, 209,603.70 and 83,905.20
Calculator
Solution
The fourth proportional to 151,889.70, 209,603.70 and 83,905.20 is: 115,786.92
Step by Step Solution
- Step 1: Write the proportion equation
151,889.70 : 209,603.70 = 83,905.20 : x - Step 2: Convert to fraction form
151,889.70/209,603.70 = 83,905.20/x - Step 3: Cross multiply
151,889.70x = 209,603.70 × 83,905.20 - Step 4: Simplify right side
151,889.70x = 17,586,840,369.24 - Step 5: Solve for x
x = 17,586,840,369.24/151,889.70 - Step 6: Final answer
x = 115,786.92
Related Problems
Find fourth proportional to 75,944.85, 104,801.85 and 41,952.60
Half scale
Find fourth proportional to 303,779.40, 419,207.40 and 167,810.40
Double scale
Find fourth proportional to 151,890.70, 209,605.08 and 83,906.20
Similar ratio
Find fourth proportional to 227,834.55, 314,405.55 and 125,857.80
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.