Finding the Fourth Proportional to 127,998.82, 176,638.08 and 74,315.26
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Solution
The fourth proportional to 127,998.82, 176,638.08 and 74,315.26 is: 102,554.89
Step by Step Solution
- Step 1: Write the proportion equation
127,998.82 : 176,638.08 = 74,315.26 : x - Step 2: Convert to fraction form
127,998.82/176,638.08 = 74,315.26/x - Step 3: Cross multiply
127,998.82x = 176,638.08 × 74,315.26 - Step 4: Simplify right side
127,998.82x = 13,126,904,841.10 - Step 5: Solve for x
x = 13,126,904,841.10/127,998.82 - Step 6: Final answer
x = 102,554.89
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1.5x scale
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.