Finding the Fourth Proportional to 106,670.80, 160,135.80 and 80,167.60
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Solution
The fourth proportional to 106,670.80, 160,135.80 and 80,167.60 is: 120,348.80
Step by Step Solution
- Step 1: Write the proportion equation
106,670.80 : 160,135.80 = 80,167.60 : x - Step 2: Convert to fraction form
106,670.80/160,135.80 = 80,167.60/x - Step 3: Cross multiply
106,670.80x = 160,135.80 × 80,167.60 - Step 4: Simplify right side
106,670.80x = 12,837,702,760.08 - Step 5: Solve for x
x = 12,837,702,760.08/106,670.80 - Step 6: Final answer
x = 120,348.80
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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.