Finding the Fourth Proportional to 99,103.92, 136,765.08 and 56,662.80
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Solution
The fourth proportional to 99,103.92, 136,765.08 and 56,662.80 is: 78,195.62
Step by Step Solution
- Step 1: Write the proportion equation
99,103.92 : 136,765.08 = 56,662.80 : x - Step 2: Convert to fraction form
99,103.92/136,765.08 = 56,662.80/x - Step 3: Cross multiply
99,103.92x = 136,765.08 × 56,662.80 - Step 4: Simplify right side
99,103.92x = 7,749,492,375.02 - Step 5: Solve for x
x = 7,749,492,375.02/99,103.92 - Step 6: Final answer
x = 78,195.62
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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.