Finding the Fourth Proportional to 135,963.79, 203,924.62 and 69,453.07
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Solution
The fourth proportional to 135,963.79, 203,924.62 and 69,453.07 is: 104,168.84
Step by Step Solution
- Step 1: Write the proportion equation
135,963.79 : 203,924.62 = 69,453.07 : x - Step 2: Convert to fraction form
135,963.79/203,924.62 = 69,453.07/x - Step 3: Cross multiply
135,963.79x = 203,924.62 × 69,453.07 - Step 4: Simplify right side
135,963.79x = 14,163,189,540.70 - Step 5: Solve for x
x = 14,163,189,540.70/135,963.79 - Step 6: Final answer
x = 104,168.84
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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.