Finding the Fourth Proportional to 120,580.14, 166,389.69 and 66,864.99
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Solution
The fourth proportional to 120,580.14, 166,389.69 and 66,864.99 is: 92,267.64
Step by Step Solution
- Step 1: Write the proportion equation
120,580.14 : 166,389.69 = 66,864.99 : x - Step 2: Convert to fraction form
120,580.14/166,389.69 = 66,864.99/x - Step 3: Cross multiply
120,580.14x = 166,389.69 × 66,864.99 - Step 4: Simplify right side
120,580.14x = 11,125,645,832.66 - Step 5: Solve for x
x = 11,125,645,832.66/120,580.14 - Step 6: Final answer
x = 92,267.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.