Finding the Fourth Proportional to 106,641.16, 159,961.23 and 27,755.26
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Solution
The fourth proportional to 106,641.16, 159,961.23 and 27,755.26 is: 41,632.75
Step by Step Solution
- Step 1: Write the proportion equation
106,641.16 : 159,961.23 = 27,755.26 : x - Step 2: Convert to fraction form
106,641.16/159,961.23 = 27,755.26/x - Step 3: Cross multiply
106,641.16x = 159,961.23 × 27,755.26 - Step 4: Simplify right side
106,641.16x = 4,439,765,128.67 - Step 5: Solve for x
x = 4,439,765,128.67/106,641.16 - Step 6: Final answer
x = 41,632.75
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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.