Finding the Fourth Proportional to 121,902.36, 182,861.74 and 47,023.13
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Solution
The fourth proportional to 121,902.36, 182,861.74 and 47,023.13 is: 70,537.86
Step by Step Solution
- Step 1: Write the proportion equation
121,902.36 : 182,861.74 = 47,023.13 : x - Step 2: Convert to fraction form
121,902.36/182,861.74 = 47,023.13/x - Step 3: Cross multiply
121,902.36x = 182,861.74 × 47,023.13 - Step 4: Simplify right side
121,902.36x = 8,598,731,372.05 - Step 5: Solve for x
x = 8,598,731,372.05/121,902.36 - Step 6: Final answer
x = 70,537.86
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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.