Finding the Fourth Proportional to 122,881.12, 169,576.34 and 69,166.98
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Solution
The fourth proportional to 122,881.12, 169,576.34 and 69,166.98 is: 95,450.65
Step by Step Solution
- Step 1: Write the proportion equation
122,881.12 : 169,576.34 = 69,166.98 : x - Step 2: Convert to fraction form
122,881.12/169,576.34 = 69,166.98/x - Step 3: Cross multiply
122,881.12x = 169,576.34 × 69,166.98 - Step 4: Simplify right side
122,881.12x = 11,729,082,971.42 - Step 5: Solve for x
x = 11,729,082,971.42/122,881.12 - Step 6: Final answer
x = 95,450.65
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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.