Finding the Fourth Proportional to 122,634.56, 169,239.68 and 68,929.92
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Solution
The fourth proportional to 122,634.56, 169,239.68 and 68,929.92 is: 95,125.53
Step by Step Solution
- Step 1: Write the proportion equation
122,634.56 : 169,239.68 = 68,929.92 : x - Step 2: Convert to fraction form
122,634.56/169,239.68 = 68,929.92/x - Step 3: Cross multiply
122,634.56x = 169,239.68 × 68,929.92 - Step 4: Simplify right side
122,634.56x = 11,665,677,603.23 - Step 5: Solve for x
x = 11,665,677,603.23/122,634.56 - Step 6: Final answer
x = 95,125.53
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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.