Finding the Fourth Proportional to 129,856.06, 179,201.56 and 73,272.70
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Solution
The fourth proportional to 129,856.06, 179,201.56 and 73,272.70 is: 101,116.44
Step by Step Solution
- Step 1: Write the proportion equation
129,856.06 : 179,201.56 = 73,272.70 : x - Step 2: Convert to fraction form
129,856.06/179,201.56 = 73,272.70/x - Step 3: Cross multiply
129,856.06x = 179,201.56 × 73,272.70 - Step 4: Simplify right side
129,856.06x = 13,130,582,145.41 - Step 5: Solve for x
x = 13,130,582,145.41/129,856.06 - Step 6: Final answer
x = 101,116.44
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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.