Finding the Fourth Proportional to 165,414.12, 248,121.18 and 71,919.88
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Solution
The fourth proportional to 165,414.12, 248,121.18 and 71,919.88 is: 107,879.82
Step by Step Solution
- Step 1: Write the proportion equation
165,414.12 : 248,121.18 = 71,919.88 : x - Step 2: Convert to fraction form
165,414.12/248,121.18 = 71,919.88/x - Step 3: Cross multiply
165,414.12x = 248,121.18 × 71,919.88 - Step 4: Simplify right side
165,414.12x = 17,844,845,491.06 - Step 5: Solve for x
x = 17,844,845,491.06/165,414.12 - Step 6: Final answer
x = 107,879.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.