Finding the Fourth Proportional to 120,777.68, 166,693.70 and 69,819.95
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Solution
The fourth proportional to 120,777.68, 166,693.70 and 69,819.95 is: 96,363.38
Step by Step Solution
- Step 1: Write the proportion equation
120,777.68 : 166,693.70 = 69,819.95 : x - Step 2: Convert to fraction form
120,777.68/166,693.70 = 69,819.95/x - Step 3: Cross multiply
120,777.68x = 166,693.70 × 69,819.95 - Step 4: Simplify right side
120,777.68x = 11,638,545,450.22 - Step 5: Solve for x
x = 11,638,545,450.22/120,777.68 - Step 6: Final answer
x = 96,363.38
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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.