Finding the Fourth Proportional to 161,687.19, 223,220.81 and 107,313.09
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Solution
The fourth proportional to 161,687.19, 223,220.81 and 107,313.09 is: 148,153.45
Step by Step Solution
- Step 1: Write the proportion equation
161,687.19 : 223,220.81 = 107,313.09 : x - Step 2: Convert to fraction form
161,687.19/223,220.81 = 107,313.09/x - Step 3: Cross multiply
161,687.19x = 223,220.81 × 107,313.09 - Step 4: Simplify right side
161,687.19x = 23,954,514,894.89 - Step 5: Solve for x
x = 23,954,514,894.89/161,687.19 - Step 6: Final answer
x = 148,153.45
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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.