Finding the Fourth Proportional to 102,318.26, 141,205.68 and 57,609.14
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Solution
The fourth proportional to 102,318.26, 141,205.68 and 57,609.14 is: 79,504.26
Step by Step Solution
- Step 1: Write the proportion equation
102,318.26 : 141,205.68 = 57,609.14 : x - Step 2: Convert to fraction form
102,318.26/141,205.68 = 57,609.14/x - Step 3: Cross multiply
102,318.26x = 141,205.68 × 57,609.14 - Step 4: Simplify right side
102,318.26x = 8,134,737,787.92 - Step 5: Solve for x
x = 8,134,737,787.92/102,318.26 - Step 6: Final answer
x = 79,504.26
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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.