Finding the Fourth Proportional to 135,189.12, 202,794.54 and 40,412.40
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Solution
The fourth proportional to 135,189.12, 202,794.54 and 40,412.40 is: 60,621.85
Step by Step Solution
- Step 1: Write the proportion equation
135,189.12 : 202,794.54 = 40,412.40 : x - Step 2: Convert to fraction form
135,189.12/202,794.54 = 40,412.40/x - Step 3: Cross multiply
135,189.12x = 202,794.54 × 40,412.40 - Step 4: Simplify right side
135,189.12x = 8,195,414,068.30 - Step 5: Solve for x
x = 8,195,414,068.30/135,189.12 - Step 6: Final answer
x = 60,621.85
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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.