Finding the Fourth Proportional to 133,231.36, 199,708.16 and 54,312.96
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Solution
The fourth proportional to 133,231.36, 199,708.16 and 54,312.96 is: 81,412.82
Step by Step Solution
- Step 1: Write the proportion equation
133,231.36 : 199,708.16 = 54,312.96 : x - Step 2: Convert to fraction form
133,231.36/199,708.16 = 54,312.96/x - Step 3: Cross multiply
133,231.36x = 199,708.16 × 54,312.96 - Step 4: Simplify right side
133,231.36x = 10,846,741,305.75 - Step 5: Solve for x
x = 10,846,741,305.75/133,231.36 - Step 6: Final answer
x = 81,412.82
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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.