Finding the Fourth Proportional to 162,721.92, 224,556.80 and 91,102.08
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Solution
The fourth proportional to 162,721.92, 224,556.80 and 91,102.08 is: 125,721.18
Step by Step Solution
- Step 1: Write the proportion equation
162,721.92 : 224,556.80 = 91,102.08 : x - Step 2: Convert to fraction form
162,721.92/224,556.80 = 91,102.08/x - Step 3: Cross multiply
162,721.92x = 224,556.80 × 91,102.08 - Step 4: Simplify right side
162,721.92x = 20,457,591,558.14 - Step 5: Solve for x
x = 20,457,591,558.14/162,721.92 - Step 6: Final answer
x = 125,721.18
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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.