Finding the Fourth Proportional to 207,162.42, 285,906.09 and 126,637.08
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Solution
The fourth proportional to 207,162.42, 285,906.09 and 126,637.08 is: 174,772.59
Step by Step Solution
- Step 1: Write the proportion equation
207,162.42 : 285,906.09 = 126,637.08 : x - Step 2: Convert to fraction form
207,162.42/285,906.09 = 126,637.08/x - Step 3: Cross multiply
207,162.42x = 285,906.09 × 126,637.08 - Step 4: Simplify right side
207,162.42x = 36,206,312,391.82 - Step 5: Solve for x
x = 36,206,312,391.82/207,162.42 - Step 6: Final answer
x = 174,772.59
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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.