Finding the Fourth Proportional to 120,202.99, 165,882.13 and 66,486.62
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Solution
The fourth proportional to 120,202.99, 165,882.13 and 66,486.62 is: 91,752.65
Step by Step Solution
- Step 1: Write the proportion equation
120,202.99 : 165,882.13 = 66,486.62 : x - Step 2: Convert to fraction form
120,202.99/165,882.13 = 66,486.62/x - Step 3: Cross multiply
120,202.99x = 165,882.13 × 66,486.62 - Step 4: Simplify right side
120,202.99x = 11,028,942,390.59 - Step 5: Solve for x
x = 11,028,942,390.59/120,202.99 - Step 6: Final answer
x = 91,752.65
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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.