Finding the Fourth Proportional to 157,724.91, 217,660.73 and 86,104.95
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Solution
The fourth proportional to 157,724.91, 217,660.73 and 86,104.95 is: 118,825.02
Step by Step Solution
- Step 1: Write the proportion equation
157,724.91 : 217,660.73 = 86,104.95 : x - Step 2: Convert to fraction form
157,724.91/217,660.73 = 86,104.95/x - Step 3: Cross multiply
157,724.91x = 217,660.73 × 86,104.95 - Step 4: Simplify right side
157,724.91x = 18,741,665,843.09 - Step 5: Solve for x
x = 18,741,665,843.09/157,724.91 - Step 6: Final answer
x = 118,825.02
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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.