Finding the Fourth Proportional to 118,979.75, 164,192.06 and 68,678.75
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Solution
The fourth proportional to 118,979.75, 164,192.06 and 68,678.75 is: 94,776.68
Step by Step Solution
- Step 1: Write the proportion equation
118,979.75 : 164,192.06 = 68,678.75 : x - Step 2: Convert to fraction form
118,979.75/164,192.06 = 68,678.75/x - Step 3: Cross multiply
118,979.75x = 164,192.06 × 68,678.75 - Step 4: Simplify right side
118,979.75x = 11,276,505,440.73 - Step 5: Solve for x
x = 11,276,505,440.73/118,979.75 - Step 6: Final answer
x = 94,776.68
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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.