Finding the Fourth Proportional to 125,665.05, 173,415.69 and 69,075.21
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Solution
The fourth proportional to 125,665.05, 173,415.69 and 69,075.21 is: 95,322.65
Step by Step Solution
- Step 1: Write the proportion equation
125,665.05 : 173,415.69 = 69,075.21 : x - Step 2: Convert to fraction form
125,665.05/173,415.69 = 69,075.21/x - Step 3: Cross multiply
125,665.05x = 173,415.69 × 69,075.21 - Step 4: Simplify right side
125,665.05x = 11,978,725,204.04 - Step 5: Solve for x
x = 11,978,725,204.04/125,665.05 - Step 6: Final answer
x = 95,322.65
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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.