Finding the Fourth Proportional to 122,475.87, 169,005.69 and 71,493.03
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Solution
The fourth proportional to 122,475.87, 169,005.69 and 71,493.03 is: 98,653.95
Step by Step Solution
- Step 1: Write the proportion equation
122,475.87 : 169,005.69 = 71,493.03 : x - Step 2: Convert to fraction form
122,475.87/169,005.69 = 71,493.03/x - Step 3: Cross multiply
122,475.87x = 169,005.69 × 71,493.03 - Step 4: Simplify right side
122,475.87x = 12,082,728,865.34 - Step 5: Solve for x
x = 12,082,728,865.34/122,475.87 - Step 6: Final answer
x = 98,653.95
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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.