Finding the Fourth Proportional to 107,839.80, 161,759.70 and 104,767.80
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Solution
The fourth proportional to 107,839.80, 161,759.70 and 104,767.80 is: 157,151.70
Step by Step Solution
- Step 1: Write the proportion equation
107,839.80 : 161,759.70 = 104,767.80 : x - Step 2: Convert to fraction form
107,839.80/161,759.70 = 104,767.80/x - Step 3: Cross multiply
107,839.80x = 161,759.70 × 104,767.80 - Step 4: Simplify right side
107,839.80x = 16,947,207,897.66 - Step 5: Solve for x
x = 16,947,207,897.66/107,839.80 - Step 6: Final answer
x = 157,151.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.