Finding the Fourth Proportional to 122,775.39, 169,382.07 and 69,048.09
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Solution
The fourth proportional to 122,775.39, 169,382.07 and 69,048.09 is: 95,259.39
Step by Step Solution
- Step 1: Write the proportion equation
122,775.39 : 169,382.07 = 69,048.09 : x - Step 2: Convert to fraction form
122,775.39/169,382.07 = 69,048.09/x - Step 3: Cross multiply
122,775.39x = 169,382.07 × 69,048.09 - Step 4: Simplify right side
122,775.39x = 11,695,508,413.75 - Step 5: Solve for x
x = 11,695,508,413.75/122,775.39 - Step 6: Final answer
x = 95,259.39
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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.