Finding the Fourth Proportional to 122,587.88, 169,171.44 and 68,872.94
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Solution
The fourth proportional to 122,587.88, 169,171.44 and 68,872.94 is: 95,044.75
Step by Step Solution
- Step 1: Write the proportion equation
122,587.88 : 169,171.44 = 68,872.94 : x - Step 2: Convert to fraction form
122,587.88/169,171.44 = 68,872.94/x - Step 3: Cross multiply
122,587.88x = 169,171.44 × 68,872.94 - Step 4: Simplify right side
122,587.88x = 11,651,334,436.83 - Step 5: Solve for x
x = 11,651,334,436.83/122,587.88 - Step 6: Final answer
x = 95,044.75
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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.