Finding the Fourth Proportional to 125,309.14, 172,926.84 and 68,720.92
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Solution
The fourth proportional to 125,309.14, 172,926.84 and 68,720.92 is: 94,834.99
Step by Step Solution
- Step 1: Write the proportion equation
125,309.14 : 172,926.84 = 68,720.92 : x - Step 2: Convert to fraction form
125,309.14/172,926.84 = 68,720.92/x - Step 3: Cross multiply
125,309.14x = 172,926.84 × 68,720.92 - Step 4: Simplify right side
125,309.14x = 11,883,691,537.49 - Step 5: Solve for x
x = 11,883,691,537.49/125,309.14 - Step 6: Final answer
x = 94,834.99
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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.