Finding the Fourth Proportional to 117,745.57, 162,489.97 and 64,031.09
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Solution
The fourth proportional to 117,745.57, 162,489.97 and 64,031.09 is: 88,363.50
Step by Step Solution
- Step 1: Write the proportion equation
117,745.57 : 162,489.97 = 64,031.09 : x - Step 2: Convert to fraction form
117,745.57/162,489.97 = 64,031.09/x - Step 3: Cross multiply
117,745.57x = 162,489.97 × 64,031.09 - Step 4: Simplify right side
117,745.57x = 10,404,410,379.43 - Step 5: Solve for x
x = 10,404,410,379.43/117,745.57 - Step 6: Final answer
x = 88,363.50
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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.