Finding the Fourth Proportional to 207,759.70, 286,733.64 and 117,133.12
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Solution
The fourth proportional to 207,759.70, 286,733.64 and 117,133.12 is: 161,657.94
Step by Step Solution
- Step 1: Write the proportion equation
207,759.70 : 286,733.64 = 117,133.12 : x - Step 2: Convert to fraction form
207,759.70/286,733.64 = 117,133.12/x - Step 3: Cross multiply
207,759.70x = 286,733.64 × 117,133.12 - Step 4: Simplify right side
207,759.70x = 33,586,005,862.16 - Step 5: Solve for x
x = 33,586,005,862.16/207,759.70 - Step 6: Final answer
x = 161,657.94
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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.