Finding the Fourth Proportional to 144,864.63, 199,912.56 and 81,202.42
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Solution
The fourth proportional to 144,864.63, 199,912.56 and 81,202.42 is: 112,058.99
Step by Step Solution
- Step 1: Write the proportion equation
144,864.63 : 199,912.56 = 81,202.42 : x - Step 2: Convert to fraction form
144,864.63/199,912.56 = 81,202.42/x - Step 3: Cross multiply
144,864.63x = 199,912.56 × 81,202.42 - Step 4: Simplify right side
144,864.63x = 16,233,384,168.03 - Step 5: Solve for x
x = 16,233,384,168.03/144,864.63 - Step 6: Final answer
x = 112,058.99
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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.