Finding the Fourth Proportional to 120,178.44, 165,858.71 and 69,192.99
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Solution
The fourth proportional to 120,178.44, 165,858.71 and 69,192.99 is: 95,493.50
Step by Step Solution
- Step 1: Write the proportion equation
120,178.44 : 165,858.71 = 69,192.99 : x - Step 2: Convert to fraction form
120,178.44/165,858.71 = 69,192.99/x - Step 3: Cross multiply
120,178.44x = 165,858.71 × 69,192.99 - Step 4: Simplify right side
120,178.44x = 11,476,259,716.48 - Step 5: Solve for x
x = 11,476,259,716.48/120,178.44 - Step 6: Final answer
x = 95,493.50
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1.5x scale
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.