Finding the Fourth Proportional to 117,373.68, 161,960.79 and 69,617.70
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Solution
The fourth proportional to 117,373.68, 161,960.79 and 69,617.70 is: 96,063.60
Step by Step Solution
- Step 1: Write the proportion equation
117,373.68 : 161,960.79 = 69,617.70 : x - Step 2: Convert to fraction form
117,373.68/161,960.79 = 69,617.70/x - Step 3: Cross multiply
117,373.68x = 161,960.79 × 69,617.70 - Step 4: Simplify right side
117,373.68x = 11,275,337,689.98 - Step 5: Solve for x
x = 11,275,337,689.98/117,373.68 - Step 6: Final answer
x = 96,063.60
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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.