Finding the Fourth Proportional to 129,846.63, 194,795.19 and 49,878.75
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Solution
The fourth proportional to 129,846.63, 194,795.19 and 49,878.75 is: 74,827.82
Step by Step Solution
- Step 1: Write the proportion equation
129,846.63 : 194,795.19 = 49,878.75 : x - Step 2: Convert to fraction form
129,846.63/194,795.19 = 49,878.75/x - Step 3: Cross multiply
129,846.63x = 194,795.19 × 49,878.75 - Step 4: Simplify right side
129,846.63x = 9,716,140,583.21 - Step 5: Solve for x
x = 9,716,140,583.21/129,846.63 - Step 6: Final answer
x = 74,827.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.