Finding the Fourth Proportional to 122,441.13, 168,955.74 and 68,732.06
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Solution
The fourth proportional to 122,441.13, 168,955.74 and 68,732.06 is: 94,842.93
Step by Step Solution
- Step 1: Write the proportion equation
122,441.13 : 168,955.74 = 68,732.06 : x - Step 2: Convert to fraction form
122,441.13/168,955.74 = 68,732.06/x - Step 3: Cross multiply
122,441.13x = 168,955.74 × 68,732.06 - Step 4: Simplify right side
122,441.13x = 11,612,675,214.25 - Step 5: Solve for x
x = 11,612,675,214.25/122,441.13 - Step 6: Final answer
x = 94,842.93
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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.