Finding the Fourth Proportional to 135,816.12, 203,760.41 and 47,069.55
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Solution
The fourth proportional to 135,816.12, 203,760.41 and 47,069.55 is: 70,616.88
Step by Step Solution
- Step 1: Write the proportion equation
135,816.12 : 203,760.41 = 47,069.55 : x - Step 2: Convert to fraction form
135,816.12/203,760.41 = 47,069.55/x - Step 3: Cross multiply
135,816.12x = 203,760.41 × 47,069.55 - Step 4: Simplify right side
135,816.12x = 9,590,909,807.07 - Step 5: Solve for x
x = 9,590,909,807.07/135,816.12 - Step 6: Final answer
x = 70,616.88
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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.