Finding the Fourth Proportional to 120,523.14, 166,318.92 and 66,807.99
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Solution
The fourth proportional to 120,523.14, 166,318.92 and 66,807.99 is: 92,193.36
Step by Step Solution
- Step 1: Write the proportion equation
120,523.14 : 166,318.92 = 66,807.99 : x - Step 2: Convert to fraction form
120,523.14/166,318.92 = 66,807.99/x - Step 3: Cross multiply
120,523.14x = 166,318.92 × 66,807.99 - Step 4: Simplify right side
120,523.14x = 11,111,432,744.17 - Step 5: Solve for x
x = 11,111,432,744.17/120,523.14 - Step 6: Final answer
x = 92,193.36
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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.