Finding the Fourth Proportional to 122,879.08, 169,578.53 and 69,167.53
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Solution
The fourth proportional to 122,879.08, 169,578.53 and 69,167.53 is: 95,454.23
Step by Step Solution
- Step 1: Write the proportion equation
122,879.08 : 169,578.53 = 69,167.53 : x - Step 2: Convert to fraction form
122,879.08/169,578.53 = 69,167.53/x - Step 3: Cross multiply
122,879.08x = 169,578.53 × 69,167.53 - Step 4: Simplify right side
122,879.08x = 11,729,328,061.13 - Step 5: Solve for x
x = 11,729,328,061.13/122,879.08 - Step 6: Final answer
x = 95,454.23
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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.