Finding the Fourth Proportional to 117,612.97, 162,302.74 and 69,217.75
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Solution
The fourth proportional to 117,612.97, 162,302.74 and 69,217.75 is: 95,518.63
Step by Step Solution
- Step 1: Write the proportion equation
117,612.97 : 162,302.74 = 69,217.75 : x - Step 2: Convert to fraction form
117,612.97/162,302.74 = 69,217.75/x - Step 3: Cross multiply
117,612.97x = 162,302.74 × 69,217.75 - Step 4: Simplify right side
117,612.97x = 11,234,229,670.12 - Step 5: Solve for x
x = 11,234,229,670.12/117,612.97 - Step 6: Final answer
x = 95,518.63
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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.