Finding the Fourth Proportional to 119,954.12, 178,961.29 and 107,997.44
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Solution
The fourth proportional to 119,954.12, 178,961.29 and 107,997.44 is: 161,122.95
Step by Step Solution
- Step 1: Write the proportion equation
119,954.12 : 178,961.29 = 107,997.44 : x - Step 2: Convert to fraction form
119,954.12/178,961.29 = 107,997.44/x - Step 3: Cross multiply
119,954.12x = 178,961.29 × 107,997.44 - Step 4: Simplify right side
119,954.12x = 19,327,361,179.10 - Step 5: Solve for x
x = 19,327,361,179.10/119,954.12 - Step 6: Final answer
x = 161,122.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.