Finding the Fourth Proportional to 106,516.20, 147,005.37 and 61,194.09
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Solution
The fourth proportional to 106,516.20, 147,005.37 and 61,194.09 is: 84,455.32
Step by Step Solution
- Step 1: Write the proportion equation
106,516.20 : 147,005.37 = 61,194.09 : x - Step 2: Convert to fraction form
106,516.20/147,005.37 = 61,194.09/x - Step 3: Cross multiply
106,516.20x = 147,005.37 × 61,194.09 - Step 4: Simplify right side
106,516.20x = 8,995,859,536.29 - Step 5: Solve for x
x = 8,995,859,536.29/106,516.20 - Step 6: Final answer
x = 84,455.32
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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.