Finding the Fourth Proportional to 109,771.50, 151,501.02 and 66,757.99
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Solution
The fourth proportional to 109,771.50, 151,501.02 and 66,757.99 is: 92,135.97
Step by Step Solution
- Step 1: Write the proportion equation
109,771.50 : 151,501.02 = 66,757.99 : x - Step 2: Convert to fraction form
109,771.50/151,501.02 = 66,757.99/x - Step 3: Cross multiply
109,771.50x = 151,501.02 × 66,757.99 - Step 4: Simplify right side
109,771.50x = 10,113,903,244.36 - Step 5: Solve for x
x = 10,113,903,244.36/109,771.50 - Step 6: Final answer
x = 92,135.97
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.