Finding the Fourth Proportional to 146,037.63, 201,531.93 and 78,969.63
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Solution
The fourth proportional to 146,037.63, 201,531.93 and 78,969.63 is: 108,978.09
Step by Step Solution
- Step 1: Write the proportion equation
146,037.63 : 201,531.93 = 78,969.63 : x - Step 2: Convert to fraction form
146,037.63/201,531.93 = 78,969.63/x - Step 3: Cross multiply
146,037.63x = 201,531.93 × 78,969.63 - Step 4: Simplify right side
146,037.63x = 15,914,901,945.29 - Step 5: Solve for x
x = 15,914,901,945.29/146,037.63 - Step 6: Final answer
x = 108,978.09
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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.