Finding the Fourth Proportional to 117,570.24, 162,272.49 and 72,286.99
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Solution
The fourth proportional to 117,570.24, 162,272.49 and 72,286.99 is: 99,771.76
Step by Step Solution
- Step 1: Write the proportion equation
117,570.24 : 162,272.49 = 72,286.99 : x - Step 2: Convert to fraction form
117,570.24/162,272.49 = 72,286.99/x - Step 3: Cross multiply
117,570.24x = 162,272.49 × 72,286.99 - Step 4: Simplify right side
117,570.24x = 11,730,189,861.91 - Step 5: Solve for x
x = 11,730,189,861.91/117,570.24 - Step 6: Final answer
x = 99,771.76
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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.