Finding the Fourth Proportional to 125,326.75, 172,959.12 and 68,738.13
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Solution
The fourth proportional to 125,326.75, 172,959.12 and 68,738.13 is: 94,863.12
Step by Step Solution
- Step 1: Write the proportion equation
125,326.75 : 172,959.12 = 68,738.13 : x - Step 2: Convert to fraction form
125,326.75/172,959.12 = 68,738.13/x - Step 3: Cross multiply
125,326.75x = 172,959.12 × 68,738.13 - Step 4: Simplify right side
125,326.75x = 11,888,886,475.25 - Step 5: Solve for x
x = 11,888,886,475.25/125,326.75 - Step 6: Final answer
x = 94,863.12
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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.