Finding the Fourth Proportional to 117,230.28, 161,776.50 and 63,512.09
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Solution
The fourth proportional to 117,230.28, 161,776.50 and 63,512.09 is: 87,645.99
Step by Step Solution
- Step 1: Write the proportion equation
117,230.28 : 161,776.50 = 63,512.09 : x - Step 2: Convert to fraction form
117,230.28/161,776.50 = 63,512.09/x - Step 3: Cross multiply
117,230.28x = 161,776.50 × 63,512.09 - Step 4: Simplify right side
117,230.28x = 10,274,763,627.89 - Step 5: Solve for x
x = 10,274,763,627.89/117,230.28 - Step 6: Final answer
x = 87,645.99
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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.