Finding the Fourth Proportional to 123,539.16, 170,481.42 and 69,817.08
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Solution
The fourth proportional to 123,539.16, 170,481.42 and 69,817.08 is: 96,346.09
Step by Step Solution
- Step 1: Write the proportion equation
123,539.16 : 170,481.42 = 69,817.08 : x - Step 2: Convert to fraction form
123,539.16/170,481.42 = 69,817.08/x - Step 3: Cross multiply
123,539.16x = 170,481.42 × 69,817.08 - Step 4: Simplify right side
123,539.16x = 11,902,514,938.65 - Step 5: Solve for x
x = 11,902,514,938.65/123,539.16 - Step 6: Final answer
x = 96,346.09
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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.