Finding the Fourth Proportional to 125,007.62, 172,514.64 and 68,418.98
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Solution
The fourth proportional to 125,007.62, 172,514.64 and 68,418.98 is: 94,420.45
Step by Step Solution
- Step 1: Write the proportion equation
125,007.62 : 172,514.64 = 68,418.98 : x - Step 2: Convert to fraction form
125,007.62/172,514.64 = 68,418.98/x - Step 3: Cross multiply
125,007.62x = 172,514.64 × 68,418.98 - Step 4: Simplify right side
125,007.62x = 11,803,275,703.87 - Step 5: Solve for x
x = 11,803,275,703.87/125,007.62 - Step 6: Final answer
x = 94,420.45
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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.