Finding the Fourth Proportional to 107,832.80, 161,749.20 and 97,983.20
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Solution
The fourth proportional to 107,832.80, 161,749.20 and 97,983.20 is: 146,974.80
Step by Step Solution
- Step 1: Write the proportion equation
107,832.80 : 161,749.20 = 97,983.20 : x - Step 2: Convert to fraction form
107,832.80/161,749.20 = 97,983.20/x - Step 3: Cross multiply
107,832.80x = 161,749.20 × 97,983.20 - Step 4: Simplify right side
107,832.80x = 15,848,704,213.44 - Step 5: Solve for x
x = 15,848,704,213.44/107,832.80 - Step 6: Final answer
x = 146,974.80
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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.