Finding the Fourth Proportional to 125,039.61, 172,554.67 and 68,450.99
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Solution
The fourth proportional to 125,039.61, 172,554.67 and 68,450.99 is: 94,462.36
Step by Step Solution
- Step 1: Write the proportion equation
125,039.61 : 172,554.67 = 68,450.99 : x - Step 2: Convert to fraction form
125,039.61/172,554.67 = 68,450.99/x - Step 3: Cross multiply
125,039.61x = 172,554.67 × 68,450.99 - Step 4: Simplify right side
125,039.61x = 11,811,537,127.85 - Step 5: Solve for x
x = 11,811,537,127.85/125,039.61 - Step 6: Final answer
x = 94,462.36
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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.