Finding the Fourth Proportional to 116,643.28, 160,912.29 and 68,864.62
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Solution
The fourth proportional to 116,643.28, 160,912.29 and 68,864.62 is: 95,000.45
Step by Step Solution
- Step 1: Write the proportion equation
116,643.28 : 160,912.29 = 68,864.62 : x - Step 2: Convert to fraction form
116,643.28/160,912.29 = 68,864.62/x - Step 3: Cross multiply
116,643.28x = 160,912.29 × 68,864.62 - Step 4: Simplify right side
116,643.28x = 11,081,163,704.18 - Step 5: Solve for x
x = 11,081,163,704.18/116,643.28 - Step 6: Final answer
x = 95,000.45
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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.