Finding the Fourth Proportional to 122,630.74, 169,245.45 and 68,918.02
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Solution
The fourth proportional to 122,630.74, 169,245.45 and 68,918.02 is: 95,115.31
Step by Step Solution
- Step 1: Write the proportion equation
122,630.74 : 169,245.45 = 68,918.02 : x - Step 2: Convert to fraction form
122,630.74/169,245.45 = 68,918.02/x - Step 3: Cross multiply
122,630.74x = 169,245.45 × 68,918.02 - Step 4: Simplify right side
122,630.74x = 11,664,061,308.01 - Step 5: Solve for x
x = 11,664,061,308.01/122,630.74 - Step 6: Final answer
x = 95,115.31
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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.