Finding the Fourth Proportional to 136,158.06, 187,905.06 and 75,729.88
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Solution
The fourth proportional to 136,158.06, 187,905.06 and 75,729.88 is: 104,511.09
Step by Step Solution
- Step 1: Write the proportion equation
136,158.06 : 187,905.06 = 75,729.88 : x - Step 2: Convert to fraction form
136,158.06/187,905.06 = 75,729.88/x - Step 3: Cross multiply
136,158.06x = 187,905.06 × 75,729.88 - Step 4: Simplify right side
136,158.06x = 14,230,027,645.19 - Step 5: Solve for x
x = 14,230,027,645.19/136,158.06 - Step 6: Final answer
x = 104,511.09
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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.