Finding the Fourth Proportional to 116,209.99, 160,375.04 and 91,015.75
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Solution
The fourth proportional to 116,209.99, 160,375.04 and 91,015.75 is: 125,605.85
Step by Step Solution
- Step 1: Write the proportion equation
116,209.99 : 160,375.04 = 91,015.75 : x - Step 2: Convert to fraction form
116,209.99/160,375.04 = 91,015.75/x - Step 3: Cross multiply
116,209.99x = 160,375.04 × 91,015.75 - Step 4: Simplify right side
116,209.99x = 14,596,654,546.88 - Step 5: Solve for x
x = 14,596,654,546.88/116,209.99 - Step 6: Final answer
x = 125,605.85
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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.