Finding the Fourth Proportional to 117,618.43, 162,277.67 and 66,623.06
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Solution
The fourth proportional to 117,618.43, 162,277.67 and 66,623.06 is: 91,919.56
Step by Step Solution
- Step 1: Write the proportion equation
117,618.43 : 162,277.67 = 66,623.06 : x - Step 2: Convert to fraction form
117,618.43/162,277.67 = 66,623.06/x - Step 3: Cross multiply
117,618.43x = 162,277.67 × 66,623.06 - Step 4: Simplify right side
117,618.43x = 10,811,434,300.24 - Step 5: Solve for x
x = 10,811,434,300.24/117,618.43 - Step 6: Final answer
x = 91,919.56
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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.