Finding the Fourth Proportional to 190,612.08, 263,053.26 and 105,729.12
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Solution
The fourth proportional to 190,612.08, 263,053.26 and 105,729.12 is: 145,910.95
Step by Step Solution
- Step 1: Write the proportion equation
190,612.08 : 263,053.26 = 105,729.12 : x - Step 2: Convert to fraction form
190,612.08/263,053.26 = 105,729.12/x - Step 3: Cross multiply
190,612.08x = 263,053.26 × 105,729.12 - Step 4: Simplify right side
190,612.08x = 27,812,389,692.93 - Step 5: Solve for x
x = 27,812,389,692.93/190,612.08 - Step 6: Final answer
x = 145,910.95
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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.