Finding the Fourth Proportional to 118,932.95, 178,049.49 and 79,391.99
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Solution
The fourth proportional to 118,932.95, 178,049.49 and 79,391.99 is: 118,854.39
Step by Step Solution
- Step 1: Write the proportion equation
118,932.95 : 178,049.49 = 79,391.99 : x - Step 2: Convert to fraction form
118,932.95/178,049.49 = 79,391.99/x - Step 3: Cross multiply
118,932.95x = 178,049.49 × 79,391.99 - Step 4: Simplify right side
118,932.95x = 14,135,703,329.59 - Step 5: Solve for x
x = 14,135,703,329.59/118,932.95 - Step 6: Final answer
x = 118,854.39
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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.