Finding the Fourth Proportional to 171,609.68, 236,558.84 and 120,478.97
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Solution
The fourth proportional to 171,609.68, 236,558.84 and 120,478.97 is: 166,076.68
Step by Step Solution
- Step 1: Write the proportion equation
171,609.68 : 236,558.84 = 120,478.97 : x - Step 2: Convert to fraction form
171,609.68/236,558.84 = 120,478.97/x - Step 3: Cross multiply
171,609.68x = 236,558.84 × 120,478.97 - Step 4: Simplify right side
171,609.68x = 28,500,365,688.79 - Step 5: Solve for x
x = 28,500,365,688.79/171,609.68 - Step 6: Final answer
x = 166,076.68
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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.