Finding the Fourth Proportional to 144,954.36, 199,961.46 and 91,137.96
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Solution
The fourth proportional to 144,954.36, 199,961.46 and 91,137.96 is: 125,722.88
Step by Step Solution
- Step 1: Write the proportion equation
144,954.36 : 199,961.46 = 91,137.96 : x - Step 2: Convert to fraction form
144,954.36/199,961.46 = 91,137.96/x - Step 3: Cross multiply
144,954.36x = 199,961.46 × 91,137.96 - Step 4: Simplify right side
144,954.36x = 18,224,079,543.02 - Step 5: Solve for x
x = 18,224,079,543.02/144,954.36 - Step 6: Final answer
x = 125,722.88
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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.