Finding the Fourth Proportional to 127,947.40, 176,510.36 and 74,201.28
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Solution
The fourth proportional to 127,947.40, 176,510.36 and 74,201.28 is: 102,364.68
Step by Step Solution
- Step 1: Write the proportion equation
127,947.40 : 176,510.36 = 74,201.28 : x - Step 2: Convert to fraction form
127,947.40/176,510.36 = 74,201.28/x - Step 3: Cross multiply
127,947.40x = 176,510.36 × 74,201.28 - Step 4: Simplify right side
127,947.40x = 13,097,294,645.26 - Step 5: Solve for x
x = 13,097,294,645.26/127,947.40 - Step 6: Final answer
x = 102,364.68
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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.