Finding the Fourth Proportional to 133,051.75, 199,471.62 and 76,828.08
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Solution
The fourth proportional to 133,051.75, 199,471.62 and 76,828.08 is: 115,180.91
Step by Step Solution
- Step 1: Write the proportion equation
133,051.75 : 199,471.62 = 76,828.08 : x - Step 2: Convert to fraction form
133,051.75/199,471.62 = 76,828.08/x - Step 3: Cross multiply
133,051.75x = 199,471.62 × 76,828.08 - Step 4: Simplify right side
133,051.75x = 15,325,021,579.09 - Step 5: Solve for x
x = 15,325,021,579.09/133,051.75 - Step 6: Final answer
x = 115,180.91
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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.