Finding the Fourth Proportional to 123,629.90, 170,609.36 and 67,041.26
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Solution
The fourth proportional to 123,629.90, 170,609.36 and 67,041.26 is: 92,516.99
Step by Step Solution
- Step 1: Write the proportion equation
123,629.90 : 170,609.36 = 67,041.26 : x - Step 2: Convert to fraction form
123,629.90/170,609.36 = 67,041.26/x - Step 3: Cross multiply
123,629.90x = 170,609.36 × 67,041.26 - Step 4: Simplify right side
123,629.90x = 11,437,866,126.99 - Step 5: Solve for x
x = 11,437,866,126.99/123,629.90 - Step 6: Final answer
x = 92,516.99
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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.