Finding the Fourth Proportional to 132,708.07, 183,138.32 and 72,278.99
Calculator
Solution
The fourth proportional to 132,708.07, 183,138.32 and 72,278.99 is: 99,745.64
Step by Step Solution
- Step 1: Write the proportion equation
132,708.07 : 183,138.32 = 72,278.99 : x - Step 2: Convert to fraction form
132,708.07/183,138.32 = 72,278.99/x - Step 3: Cross multiply
132,708.07x = 183,138.32 × 72,278.99 - Step 4: Simplify right side
132,708.07x = 13,237,051,522.81 - Step 5: Solve for x
x = 13,237,051,522.81/132,708.07 - Step 6: Final answer
x = 99,745.64
Related Problems
Find fourth proportional to 66,354.03, 91,569.16 and 36,139.49
Half scale
Find fourth proportional to 265,416.13, 366,276.63 and 144,557.97
Double scale
Find fourth proportional to 132,709.07, 183,139.70 and 72,279.99
Similar ratio
Find fourth proportional to 199,062.10, 274,707.47 and 108,418.48
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.