Finding the Fourth Proportional to 125,148.06, 172,703.43 and 67,786.09
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Solution
The fourth proportional to 125,148.06, 172,703.43 and 67,786.09 is: 93,544.32
Step by Step Solution
- Step 1: Write the proportion equation
125,148.06 : 172,703.43 = 67,786.09 : x - Step 2: Convert to fraction form
125,148.06/172,703.43 = 67,786.09/x - Step 3: Cross multiply
125,148.06x = 172,703.43 × 67,786.09 - Step 4: Simplify right side
125,148.06x = 11,706,889,817.53 - Step 5: Solve for x
x = 11,706,889,817.53/125,148.06 - Step 6: Final answer
x = 93,544.32
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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.