Finding the Fourth Proportional to 158,939.96, 219,157.62 and 115,843.28
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Solution
The fourth proportional to 158,939.96, 219,157.62 and 115,843.28 is: 159,732.88
Step by Step Solution
- Step 1: Write the proportion equation
158,939.96 : 219,157.62 = 115,843.28 : x - Step 2: Convert to fraction form
158,939.96/219,157.62 = 115,843.28/x - Step 3: Cross multiply
158,939.96x = 219,157.62 × 115,843.28 - Step 4: Simplify right side
158,939.96x = 25,387,937,537.79 - Step 5: Solve for x
x = 25,387,937,537.79/158,939.96 - Step 6: Final answer
x = 159,732.88
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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.