Finding the Fourth Proportional to 127,939.06, 176,587.56 and 87,170.62
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Solution
The fourth proportional to 127,939.06, 176,587.56 and 87,170.62 is: 120,317.03
Step by Step Solution
- Step 1: Write the proportion equation
127,939.06 : 176,587.56 = 87,170.62 : x - Step 2: Convert to fraction form
127,939.06/176,587.56 = 87,170.62/x - Step 3: Cross multiply
127,939.06x = 176,587.56 × 87,170.62 - Step 4: Simplify right side
127,939.06x = 15,393,247,089.49 - Step 5: Solve for x
x = 15,393,247,089.49/127,939.06 - Step 6: Final answer
x = 120,317.03
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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.