Finding the Fourth Proportional to 117,717.21, 176,550.91 and 38,812.68
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Solution
The fourth proportional to 117,717.21, 176,550.91 and 38,812.68 is: 58,210.81
Step by Step Solution
- Step 1: Write the proportion equation
117,717.21 : 176,550.91 = 38,812.68 : x - Step 2: Convert to fraction form
117,717.21/176,550.91 = 38,812.68/x - Step 3: Cross multiply
117,717.21x = 176,550.91 × 38,812.68 - Step 4: Simplify right side
117,717.21x = 6,852,413,876.51 - Step 5: Solve for x
x = 6,852,413,876.51/117,717.21 - Step 6: Final answer
x = 58,210.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.