Finding the Fourth Proportional to 126,271.09, 189,351.21 and 47,329.96
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Solution
The fourth proportional to 126,271.09, 189,351.21 and 47,329.96 is: 70,974.17
Step by Step Solution
- Step 1: Write the proportion equation
126,271.09 : 189,351.21 = 47,329.96 : x - Step 2: Convert to fraction form
126,271.09/189,351.21 = 47,329.96/x - Step 3: Cross multiply
126,271.09x = 189,351.21 × 47,329.96 - Step 4: Simplify right side
126,271.09x = 8,961,985,195.25 - Step 5: Solve for x
x = 8,961,985,195.25/126,271.09 - Step 6: Final answer
x = 70,974.17
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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.