Finding the Fourth Proportional to 135,300.44, 186,734.42 and 77,928.74
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Solution
The fourth proportional to 135,300.44, 186,734.42 and 77,928.74 is: 107,553.07
Step by Step Solution
- Step 1: Write the proportion equation
135,300.44 : 186,734.42 = 77,928.74 : x - Step 2: Convert to fraction form
135,300.44/186,734.42 = 77,928.74/x - Step 3: Cross multiply
135,300.44x = 186,734.42 × 77,928.74 - Step 4: Simplify right side
135,300.44x = 14,551,978,065.23 - Step 5: Solve for x
x = 14,551,978,065.23/135,300.44 - Step 6: Final answer
x = 107,553.07
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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.