Finding the Fourth Proportional to 115,982.52, 160,053.16 and 68,238.96
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Solution
The fourth proportional to 115,982.52, 160,053.16 and 68,238.96 is: 94,168.17
Step by Step Solution
- Step 1: Write the proportion equation
115,982.52 : 160,053.16 = 68,238.96 : x - Step 2: Convert to fraction form
115,982.52/160,053.16 = 68,238.96/x - Step 3: Cross multiply
115,982.52x = 160,053.16 × 68,238.96 - Step 4: Simplify right side
115,982.52x = 10,921,861,183.11 - Step 5: Solve for x
x = 10,921,861,183.11/115,982.52 - Step 6: Final answer
x = 94,168.17
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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.