Finding the Fourth Proportional to 132,996.05, 183,509.37 and 79,286.06
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Solution
The fourth proportional to 132,996.05, 183,509.37 and 79,286.06 is: 109,399.75
Step by Step Solution
- Step 1: Write the proportion equation
132,996.05 : 183,509.37 = 79,286.06 : x - Step 2: Convert to fraction form
132,996.05/183,509.37 = 79,286.06/x - Step 3: Cross multiply
132,996.05x = 183,509.37 × 79,286.06 - Step 4: Simplify right side
132,996.05x = 14,549,734,920.38 - Step 5: Solve for x
x = 14,549,734,920.38/132,996.05 - Step 6: Final answer
x = 109,399.75
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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.