Finding the Fourth Proportional to 106,936.92, 160,612.96 and 78,745.62
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Solution
The fourth proportional to 106,936.92, 160,612.96 and 78,745.62 is: 118,271.29
Step by Step Solution
- Step 1: Write the proportion equation
106,936.92 : 160,612.96 = 78,745.62 : x - Step 2: Convert to fraction form
106,936.92/160,612.96 = 78,745.62/x - Step 3: Cross multiply
106,936.92x = 160,612.96 × 78,745.62 - Step 4: Simplify right side
106,936.92x = 12,647,567,115.24 - Step 5: Solve for x
x = 12,647,567,115.24/106,936.92 - Step 6: Final answer
x = 118,271.29
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1.5x scale
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.