Finding the Fourth Proportional to 125,214.63, 187,843.81 and 55,092.12
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Solution
The fourth proportional to 125,214.63, 187,843.81 and 55,092.12 is: 82,647.80
Step by Step Solution
- Step 1: Write the proportion equation
125,214.63 : 187,843.81 = 55,092.12 : x - Step 2: Convert to fraction form
125,214.63/187,843.81 = 55,092.12/x - Step 3: Cross multiply
125,214.63x = 187,843.81 × 55,092.12 - Step 4: Simplify right side
125,214.63x = 10,348,713,086.23 - Step 5: Solve for x
x = 10,348,713,086.23/125,214.63 - Step 6: Final answer
x = 82,647.80
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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.