Finding the Fourth Proportional to 125,331.88, 172,957.93 and 68,743.26
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Solution
The fourth proportional to 125,331.88, 172,957.93 and 68,743.26 is: 94,865.66
Step by Step Solution
- Step 1: Write the proportion equation
125,331.88 : 172,957.93 = 68,743.26 : x - Step 2: Convert to fraction form
125,331.88/172,957.93 = 68,743.26/x - Step 3: Cross multiply
125,331.88x = 172,957.93 × 68,743.26 - Step 4: Simplify right side
125,331.88x = 11,889,691,951.05 - Step 5: Solve for x
x = 11,889,691,951.05/125,331.88 - Step 6: Final answer
x = 94,865.66
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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.