Finding the Fourth Proportional to 123,749.26, 170,774.40 and 67,160.62
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Solution
The fourth proportional to 123,749.26, 170,774.40 and 67,160.62 is: 92,681.88
Step by Step Solution
- Step 1: Write the proportion equation
123,749.26 : 170,774.40 = 67,160.62 : x - Step 2: Convert to fraction form
123,749.26/170,774.40 = 67,160.62/x - Step 3: Cross multiply
123,749.26x = 170,774.40 × 67,160.62 - Step 4: Simplify right side
123,749.26x = 11,469,314,584.13 - Step 5: Solve for x
x = 11,469,314,584.13/123,749.26 - Step 6: Final answer
x = 92,681.88
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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.