Finding the Fourth Proportional to 129,201.02, 178,257.33 and 75,447.26
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Solution
The fourth proportional to 129,201.02, 178,257.33 and 75,447.26 is: 104,093.81
Step by Step Solution
- Step 1: Write the proportion equation
129,201.02 : 178,257.33 = 75,447.26 : x - Step 2: Convert to fraction form
129,201.02/178,257.33 = 75,447.26/x - Step 3: Cross multiply
129,201.02x = 178,257.33 × 75,447.26 - Step 4: Simplify right side
129,201.02x = 13,449,026,232.13 - Step 5: Solve for x
x = 13,449,026,232.13/129,201.02 - Step 6: Final answer
x = 104,093.81
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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.