Finding the Fourth Proportional to 123,189.49, 170,000.67 and 69,474.97
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Solution
The fourth proportional to 123,189.49, 170,000.67 and 69,474.97 is: 95,874.99
Step by Step Solution
- Step 1: Write the proportion equation
123,189.49 : 170,000.67 = 69,474.97 : x - Step 2: Convert to fraction form
123,189.49/170,000.67 = 69,474.97/x - Step 3: Cross multiply
123,189.49x = 170,000.67 × 69,474.97 - Step 4: Simplify right side
123,189.49x = 11,810,791,448.23 - Step 5: Solve for x
x = 11,810,791,448.23/123,189.49 - Step 6: Final answer
x = 95,874.99
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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.