Finding the Fourth Proportional to 114,471.20, 157,974.36 and 66,716.84
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Solution
The fourth proportional to 114,471.20, 157,974.36 and 66,716.84 is: 92,071.63
Step by Step Solution
- Step 1: Write the proportion equation
114,471.20 : 157,974.36 = 66,716.84 : x - Step 2: Convert to fraction form
114,471.20/157,974.36 = 66,716.84/x - Step 3: Cross multiply
114,471.20x = 157,974.36 × 66,716.84 - Step 4: Simplify right side
114,471.20x = 10,539,550,100.22 - Step 5: Solve for x
x = 10,539,550,100.22/114,471.20 - Step 6: Final answer
x = 92,071.63
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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.