Finding the Fourth Proportional to 68,107.13, 102,160.69 and 18,859.13
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Solution
The fourth proportional to 68,107.13, 102,160.69 and 18,859.13 is: 28,288.69
Step by Step Solution
- Step 1: Write the proportion equation
68,107.13 : 102,160.69 = 18,859.13 : x - Step 2: Convert to fraction form
68,107.13/102,160.69 = 18,859.13/x - Step 3: Cross multiply
68,107.13x = 102,160.69 × 18,859.13 - Step 4: Simplify right side
68,107.13x = 1,926,661,733.60 - Step 5: Solve for x
x = 1,926,661,733.60/68,107.13 - Step 6: Final answer
x = 28,288.69
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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.