Finding the Fourth Proportional to 168,313.20, 252,129.60 and 104,938.80
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Solution
The fourth proportional to 168,313.20, 252,129.60 and 104,938.80 is: 157,196.09
Step by Step Solution
- Step 1: Write the proportion equation
168,313.20 : 252,129.60 = 104,938.80 : x - Step 2: Convert to fraction form
168,313.20/252,129.60 = 104,938.80/x - Step 3: Cross multiply
168,313.20x = 252,129.60 × 104,938.80 - Step 4: Simplify right side
168,313.20x = 26,458,177,668.48 - Step 5: Solve for x
x = 26,458,177,668.48/168,313.20 - Step 6: Final answer
x = 157,196.09
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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.