Finding the Fourth Proportional to 154,260.94, 212,879.49 and 86,277.64
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Solution
The fourth proportional to 154,260.94, 212,879.49 and 86,277.64 is: 119,062.80
Step by Step Solution
- Step 1: Write the proportion equation
154,260.94 : 212,879.49 = 86,277.64 : x - Step 2: Convert to fraction form
154,260.94/212,879.49 = 86,277.64/x - Step 3: Cross multiply
154,260.94x = 212,879.49 × 86,277.64 - Step 4: Simplify right side
154,260.94x = 18,366,740,001.60 - Step 5: Solve for x
x = 18,366,740,001.60/154,260.94 - Step 6: Final answer
x = 119,062.80
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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.