Finding the Fourth Proportional to 129,516.09, 194,285.08 and 36,021.84
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Solution
The fourth proportional to 129,516.09, 194,285.08 and 36,021.84 is: 54,035.81
Step by Step Solution
- Step 1: Write the proportion equation
129,516.09 : 194,285.08 = 36,021.84 : x - Step 2: Convert to fraction form
129,516.09/194,285.08 = 36,021.84/x - Step 3: Cross multiply
129,516.09x = 194,285.08 × 36,021.84 - Step 4: Simplify right side
129,516.09x = 6,998,506,637.12 - Step 5: Solve for x
x = 6,998,506,637.12/129,516.09 - Step 6: Final answer
x = 54,035.81
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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.