Finding the Fourth Proportional to 107,190.95, 147,991.25 and 68,968.26
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Solution
The fourth proportional to 107,190.95, 147,991.25 and 68,968.26 is: 95,219.79
Step by Step Solution
- Step 1: Write the proportion equation
107,190.95 : 147,991.25 = 68,968.26 : x - Step 2: Convert to fraction form
107,190.95/147,991.25 = 68,968.26/x - Step 3: Cross multiply
107,190.95x = 147,991.25 × 68,968.26 - Step 4: Simplify right side
107,190.95x = 10,206,699,180.15 - Step 5: Solve for x
x = 10,206,699,180.15/107,190.95 - Step 6: Final answer
x = 95,219.79
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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.