Finding the Fourth Proportional to 166,965.52, 230,717.92 and 121,564.68
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Solution
The fourth proportional to 166,965.52, 230,717.92 and 121,564.68 is: 167,981.69
Step by Step Solution
- Step 1: Write the proportion equation
166,965.52 : 230,717.92 = 121,564.68 : x - Step 2: Convert to fraction form
166,965.52/230,717.92 = 121,564.68/x - Step 3: Cross multiply
166,965.52x = 230,717.92 × 121,564.68 - Step 4: Simplify right side
166,965.52x = 28,047,150,115.07 - Step 5: Solve for x
x = 28,047,150,115.07/166,965.52 - Step 6: Final answer
x = 167,981.69
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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.