Finding the Fourth Proportional to 103,545.93, 155,115.90 and 53,658.75
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Solution
The fourth proportional to 103,545.93, 155,115.90 and 53,658.75 is: 80,382.93
Step by Step Solution
- Step 1: Write the proportion equation
103,545.93 : 155,115.90 = 53,658.75 : x - Step 2: Convert to fraction form
103,545.93/155,115.90 = 53,658.75/x - Step 3: Cross multiply
103,545.93x = 155,115.90 × 53,658.75 - Step 4: Simplify right side
103,545.93x = 8,323,325,299.13 - Step 5: Solve for x
x = 8,323,325,299.13/103,545.93 - Step 6: Final answer
x = 80,382.93
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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.