Finding the Fourth Proportional to 121,816.60, 182,579.10 and 62,621.80
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Solution
The fourth proportional to 121,816.60, 182,579.10 and 62,621.80 is: 93,857.75
Step by Step Solution
- Step 1: Write the proportion equation
121,816.60 : 182,579.10 = 62,621.80 : x - Step 2: Convert to fraction form
121,816.60/182,579.10 = 62,621.80/x - Step 3: Cross multiply
121,816.60x = 182,579.10 × 62,621.80 - Step 4: Simplify right side
121,816.60x = 11,433,431,884.38 - Step 5: Solve for x
x = 11,433,431,884.38/121,816.60 - Step 6: Final answer
x = 93,857.75
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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.