Finding the Fourth Proportional to 125,102.31, 172,642.91 and 68,514.09
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Solution
The fourth proportional to 125,102.31, 172,642.91 and 68,514.09 is: 94,550.38
Step by Step Solution
- Step 1: Write the proportion equation
125,102.31 : 172,642.91 = 68,514.09 : x - Step 2: Convert to fraction form
125,102.31/172,642.91 = 68,514.09/x - Step 3: Cross multiply
125,102.31x = 172,642.91 × 68,514.09 - Step 4: Simplify right side
125,102.31x = 11,828,471,531.03 - Step 5: Solve for x
x = 11,828,471,531.03/125,102.31 - Step 6: Final answer
x = 94,550.38
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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.