Finding the Fourth Proportional to 106,516.44, 146,997.45 and 61,209.09
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Solution
The fourth proportional to 106,516.44, 146,997.45 and 61,209.09 is: 84,471.28
Step by Step Solution
- Step 1: Write the proportion equation
106,516.44 : 146,997.45 = 61,209.09 : x - Step 2: Convert to fraction form
106,516.44/146,997.45 = 61,209.09/x - Step 3: Cross multiply
106,516.44x = 146,997.45 × 61,209.09 - Step 4: Simplify right side
106,516.44x = 8,997,580,146.82 - Step 5: Solve for x
x = 8,997,580,146.82/106,516.44 - Step 6: Final answer
x = 84,471.28
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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.