Finding the Fourth Proportional to 117,446.09, 162,078.71 and 63,731.14
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Solution
The fourth proportional to 117,446.09, 162,078.71 and 63,731.14 is: 87,950.66
Step by Step Solution
- Step 1: Write the proportion equation
117,446.09 : 162,078.71 = 63,731.14 : x - Step 2: Convert to fraction form
117,446.09/162,078.71 = 63,731.14/x - Step 3: Cross multiply
117,446.09x = 162,078.71 × 63,731.14 - Step 4: Simplify right side
117,446.09x = 10,329,460,234.18 - Step 5: Solve for x
x = 10,329,460,234.18/117,446.09 - Step 6: Final answer
x = 87,950.66
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1.5x scale
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.