Finding the Fourth Proportional to 126,380.70, 174,405.12 and 72,676.08
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Solution
The fourth proportional to 126,380.70, 174,405.12 and 72,676.08 is: 100,292.85
Step by Step Solution
- Step 1: Write the proportion equation
126,380.70 : 174,405.12 = 72,676.08 : x - Step 2: Convert to fraction form
126,380.70/174,405.12 = 72,676.08/x - Step 3: Cross multiply
126,380.70x = 174,405.12 × 72,676.08 - Step 4: Simplify right side
126,380.70x = 12,675,080,453.53 - Step 5: Solve for x
x = 12,675,080,453.53/126,380.70 - Step 6: Final answer
x = 100,292.85
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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.