Finding the Fourth Proportional to 135,997.81, 203,914.19 and 51,763.68
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Solution
The fourth proportional to 135,997.81, 203,914.19 and 51,763.68 is: 77,614.11
Step by Step Solution
- Step 1: Write the proportion equation
135,997.81 : 203,914.19 = 51,763.68 : x - Step 2: Convert to fraction form
135,997.81/203,914.19 = 51,763.68/x - Step 3: Cross multiply
135,997.81x = 203,914.19 × 51,763.68 - Step 4: Simplify right side
135,997.81x = 10,555,349,008.03 - Step 5: Solve for x
x = 10,555,349,008.03/135,997.81 - Step 6: Final answer
x = 77,614.11
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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.