Finding the Fourth Proportional to 157,516.20, 236,274.30 and 107,749.80
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Solution
The fourth proportional to 157,516.20, 236,274.30 and 107,749.80 is: 161,624.70
Step by Step Solution
- Step 1: Write the proportion equation
157,516.20 : 236,274.30 = 107,749.80 : x - Step 2: Convert to fraction form
157,516.20/236,274.30 = 107,749.80/x - Step 3: Cross multiply
157,516.20x = 236,274.30 × 107,749.80 - Step 4: Simplify right side
157,516.20x = 25,458,508,570.14 - Step 5: Solve for x
x = 25,458,508,570.14/157,516.20 - Step 6: Final answer
x = 161,624.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.