Finding the Fourth Proportional to 122,544.69, 169,121.91 and 68,840.48
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Solution
The fourth proportional to 122,544.69, 169,121.91 and 68,840.48 is: 95,005.61
Step by Step Solution
- Step 1: Write the proportion equation
122,544.69 : 169,121.91 = 68,840.48 : x - Step 2: Convert to fraction form
122,544.69/169,121.91 = 68,840.48/x - Step 3: Cross multiply
122,544.69x = 169,121.91 × 68,840.48 - Step 4: Simplify right side
122,544.69x = 11,642,432,617.31 - Step 5: Solve for x
x = 11,642,432,617.31/122,544.69 - Step 6: Final answer
x = 95,005.61
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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.