Finding the Fourth Proportional to 142,673.49, 213,864.39 and 92,853.63
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Solution
The fourth proportional to 142,673.49, 213,864.39 and 92,853.63 is: 139,185.53
Step by Step Solution
- Step 1: Write the proportion equation
142,673.49 : 213,864.39 = 92,853.63 : x - Step 2: Convert to fraction form
142,673.49/213,864.39 = 92,853.63/x - Step 3: Cross multiply
142,673.49x = 213,864.39 × 92,853.63 - Step 4: Simplify right side
142,673.49x = 19,858,084,939.24 - Step 5: Solve for x
x = 19,858,084,939.24/142,673.49 - Step 6: Final answer
x = 139,185.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.