Finding the Fourth Proportional to 123,338.70, 170,207.42 and 66,750.08
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Solution
The fourth proportional to 123,338.70, 170,207.42 and 66,750.08 is: 92,115.11
Step by Step Solution
- Step 1: Write the proportion equation
123,338.70 : 170,207.42 = 66,750.08 : x - Step 2: Convert to fraction form
123,338.70/170,207.42 = 66,750.08/x - Step 3: Cross multiply
123,338.70x = 170,207.42 × 66,750.08 - Step 4: Simplify right side
123,338.70x = 11,361,357,716.81 - Step 5: Solve for x
x = 11,361,357,716.81/123,338.70 - Step 6: Final answer
x = 92,115.11
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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.