Finding the Fourth Proportional to 127,733.91, 176,270.49 and 71,144.07
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Solution
The fourth proportional to 127,733.91, 176,270.49 and 71,144.07 is: 98,177.53
Step by Step Solution
- Step 1: Write the proportion equation
127,733.91 : 176,270.49 = 71,144.07 : x - Step 2: Convert to fraction form
127,733.91/176,270.49 = 71,144.07/x - Step 3: Cross multiply
127,733.91x = 176,270.49 × 71,144.07 - Step 4: Simplify right side
127,733.91x = 12,540,600,079.49 - Step 5: Solve for x
x = 12,540,600,079.49/127,733.91 - Step 6: Final answer
x = 98,177.53
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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.