Finding the Fourth Proportional to 120,149.54, 165,794.68 and 66,427.21
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Solution
The fourth proportional to 120,149.54, 165,794.68 and 66,427.21 is: 91,663.09
Step by Step Solution
- Step 1: Write the proportion equation
120,149.54 : 165,794.68 = 66,427.21 : x - Step 2: Convert to fraction form
120,149.54/165,794.68 = 66,427.21/x - Step 3: Cross multiply
120,149.54x = 165,794.68 × 66,427.21 - Step 4: Simplify right side
120,149.54x = 11,013,278,025.24 - Step 5: Solve for x
x = 11,013,278,025.24/120,149.54 - Step 6: Final answer
x = 91,663.09
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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.