Finding the Fourth Proportional to 127,738.14, 176,283.03 and 74,023.26
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Solution
The fourth proportional to 127,738.14, 176,283.03 and 74,023.26 is: 102,154.65
Step by Step Solution
- Step 1: Write the proportion equation
127,738.14 : 176,283.03 = 74,023.26 : x - Step 2: Convert to fraction form
127,738.14/176,283.03 = 74,023.26/x - Step 3: Cross multiply
127,738.14x = 176,283.03 × 74,023.26 - Step 4: Simplify right side
127,738.14x = 13,049,044,563.28 - Step 5: Solve for x
x = 13,049,044,563.28/127,738.14 - Step 6: Final answer
x = 102,154.65
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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.