Finding the Fourth Proportional to 125,709.78, 173,482.53 and 69,121.14
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Solution
The fourth proportional to 125,709.78, 173,482.53 and 69,121.14 is: 95,388.84
Step by Step Solution
- Step 1: Write the proportion equation
125,709.78 : 173,482.53 = 69,121.14 : x - Step 2: Convert to fraction form
125,709.78/173,482.53 = 69,121.14/x - Step 3: Cross multiply
125,709.78x = 173,482.53 × 69,121.14 - Step 4: Simplify right side
125,709.78x = 11,991,310,243.68 - Step 5: Solve for x
x = 11,991,310,243.68/125,709.78 - Step 6: Final answer
x = 95,388.84
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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.