Finding the Fourth Proportional to 120,819.53, 166,726.34 and 67,107.99
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Solution
The fourth proportional to 120,819.53, 166,726.34 and 67,107.99 is: 92,606.47
Step by Step Solution
- Step 1: Write the proportion equation
120,819.53 : 166,726.34 = 67,107.99 : x - Step 2: Convert to fraction form
120,819.53/166,726.34 = 67,107.99/x - Step 3: Cross multiply
120,819.53x = 166,726.34 × 67,107.99 - Step 4: Simplify right side
120,819.53x = 11,188,669,221.92 - Step 5: Solve for x
x = 11,188,669,221.92/120,819.53 - Step 6: Final answer
x = 92,606.47
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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.