Finding the Fourth Proportional to 120,090.62, 180,115.44 and 40,119.53
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Solution
The fourth proportional to 120,090.62, 180,115.44 and 40,119.53 is: 60,172.44
Step by Step Solution
- Step 1: Write the proportion equation
120,090.62 : 180,115.44 = 40,119.53 : x - Step 2: Convert to fraction form
120,090.62/180,115.44 = 40,119.53/x - Step 3: Cross multiply
120,090.62x = 180,115.44 × 40,119.53 - Step 4: Simplify right side
120,090.62x = 7,226,145,897.97 - Step 5: Solve for x
x = 7,226,145,897.97/120,090.62 - Step 6: Final answer
x = 60,172.44
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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.