Finding the Fourth Proportional to 125,514.18, 173,209.86 and 68,929.20
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Solution
The fourth proportional to 125,514.18, 173,209.86 and 68,929.20 is: 95,122.46
Step by Step Solution
- Step 1: Write the proportion equation
125,514.18 : 173,209.86 = 68,929.20 : x - Step 2: Convert to fraction form
125,514.18/173,209.86 = 68,929.20/x - Step 3: Cross multiply
125,514.18x = 173,209.86 × 68,929.20 - Step 4: Simplify right side
125,514.18x = 11,939,217,081.91 - Step 5: Solve for x
x = 11,939,217,081.91/125,514.18 - Step 6: Final answer
x = 95,122.46
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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.