Finding the Fourth Proportional to 107,885.92, 161,880.24 and 48,739.68
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Solution
The fourth proportional to 107,885.92, 161,880.24 and 48,739.68 is: 73,132.72
Step by Step Solution
- Step 1: Write the proportion equation
107,885.92 : 161,880.24 = 48,739.68 : x - Step 2: Convert to fraction form
107,885.92/161,880.24 = 48,739.68/x - Step 3: Cross multiply
107,885.92x = 161,880.24 × 48,739.68 - Step 4: Simplify right side
107,885.92x = 7,889,991,095.92 - Step 5: Solve for x
x = 7,889,991,095.92/107,885.92 - Step 6: Final answer
x = 73,132.72
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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.