Finding the Fourth Proportional to 136,052.46, 187,744.09 and 75,621.06
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Solution
The fourth proportional to 136,052.46, 187,744.09 and 75,621.06 is: 104,352.45
Step by Step Solution
- Step 1: Write the proportion equation
136,052.46 : 187,744.09 = 75,621.06 : x - Step 2: Convert to fraction form
136,052.46/187,744.09 = 75,621.06/x - Step 3: Cross multiply
136,052.46x = 187,744.09 × 75,621.06 - Step 4: Simplify right side
136,052.46x = 14,197,407,094.54 - Step 5: Solve for x
x = 14,197,407,094.54/136,052.46 - Step 6: Final answer
x = 104,352.45
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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.