Finding the Fourth Proportional to 121,876.70, 182,878.80 and 49,883.06
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Solution
The fourth proportional to 121,876.70, 182,878.80 and 49,883.06 is: 74,850.68
Step by Step Solution
- Step 1: Write the proportion equation
121,876.70 : 182,878.80 = 49,883.06 : x - Step 2: Convert to fraction form
121,876.70/182,878.80 = 49,883.06/x - Step 3: Cross multiply
121,876.70x = 182,878.80 × 49,883.06 - Step 4: Simplify right side
121,876.70x = 9,122,554,153.13 - Step 5: Solve for x
x = 9,122,554,153.13/121,876.70 - Step 6: Final answer
x = 74,850.68
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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.