Finding the Fourth Proportional to 118,921.92, 164,198.37 and 76,554.26
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Solution
The fourth proportional to 118,921.92, 164,198.37 and 76,554.26 is: 105,700.32
Step by Step Solution
- Step 1: Write the proportion equation
118,921.92 : 164,198.37 = 76,554.26 : x - Step 2: Convert to fraction form
118,921.92/164,198.37 = 76,554.26/x - Step 3: Cross multiply
118,921.92x = 164,198.37 × 76,554.26 - Step 4: Simplify right side
118,921.92x = 12,570,085,068.08 - Step 5: Solve for x
x = 12,570,085,068.08/118,921.92 - Step 6: Final answer
x = 105,700.32
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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.