Finding the Fourth Proportional to 107,838.80, 161,758.20 and 97,989.20
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Solution
The fourth proportional to 107,838.80, 161,758.20 and 97,989.20 is: 146,983.80
Step by Step Solution
- Step 1: Write the proportion equation
107,838.80 : 161,758.20 = 97,989.20 : x - Step 2: Convert to fraction form
107,838.80/161,758.20 = 97,989.20/x - Step 3: Cross multiply
107,838.80x = 161,758.20 × 97,989.20 - Step 4: Simplify right side
107,838.80x = 15,850,556,611.44 - Step 5: Solve for x
x = 15,850,556,611.44/107,838.80 - Step 6: Final answer
x = 146,983.80
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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.