Finding the Fourth Proportional to 109,207.68, 150,546.24 and 77,278.08
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Solution
The fourth proportional to 109,207.68, 150,546.24 and 77,278.08 is: 106,530.28
Step by Step Solution
- Step 1: Write the proportion equation
109,207.68 : 150,546.24 = 77,278.08 : x - Step 2: Convert to fraction form
109,207.68/150,546.24 = 77,278.08/x - Step 3: Cross multiply
109,207.68x = 150,546.24 × 77,278.08 - Step 4: Simplify right side
109,207.68x = 11,633,924,378.42 - Step 5: Solve for x
x = 11,633,924,378.42/109,207.68 - Step 6: Final answer
x = 106,530.28
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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.