Finding the Fourth Proportional to 132,097.62, 197,883.99 and 72,786.18
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Solution
The fourth proportional to 132,097.62, 197,883.99 and 72,786.18 is: 109,034.66
Step by Step Solution
- Step 1: Write the proportion equation
132,097.62 : 197,883.99 = 72,786.18 : x - Step 2: Convert to fraction form
132,097.62/197,883.99 = 72,786.18/x - Step 3: Cross multiply
132,097.62x = 197,883.99 × 72,786.18 - Step 4: Simplify right side
132,097.62x = 14,403,219,715.26 - Step 5: Solve for x
x = 14,403,219,715.26/132,097.62 - Step 6: Final answer
x = 109,034.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.