Finding the Fourth Proportional to 105,125.49, 157,649.49 and 82,680.06
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Solution
The fourth proportional to 105,125.49, 157,649.49 and 82,680.06 is: 123,989.62
Step by Step Solution
- Step 1: Write the proportion equation
105,125.49 : 157,649.49 = 82,680.06 : x - Step 2: Convert to fraction form
105,125.49/157,649.49 = 82,680.06/x - Step 3: Cross multiply
105,125.49x = 157,649.49 × 82,680.06 - Step 4: Simplify right side
105,125.49x = 13,034,469,292.17 - Step 5: Solve for x
x = 13,034,469,292.17/105,125.49 - Step 6: Final answer
x = 123,989.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.