Finding the Fourth Proportional to 135,552.68, 203,371.52 and 81,576.26
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Solution
The fourth proportional to 135,552.68, 203,371.52 and 81,576.26 is: 122,389.96
Step by Step Solution
- Step 1: Write the proportion equation
135,552.68 : 203,371.52 = 81,576.26 : x - Step 2: Convert to fraction form
135,552.68/203,371.52 = 81,576.26/x - Step 3: Cross multiply
135,552.68x = 203,371.52 × 81,576.26 - Step 4: Simplify right side
135,552.68x = 16,590,286,567.38 - Step 5: Solve for x
x = 16,590,286,567.38/135,552.68 - Step 6: Final answer
x = 122,389.96
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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.