Finding the Fourth Proportional to 135,235.20, 202,852.80 and 52,129.20
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Solution
The fourth proportional to 135,235.20, 202,852.80 and 52,129.20 is: 78,193.80
Step by Step Solution
- Step 1: Write the proportion equation
135,235.20 : 202,852.80 = 52,129.20 : x - Step 2: Convert to fraction form
135,235.20/202,852.80 = 52,129.20/x - Step 3: Cross multiply
135,235.20x = 202,852.80 × 52,129.20 - Step 4: Simplify right side
135,235.20x = 10,574,554,181.76 - Step 5: Solve for x
x = 10,574,554,181.76/135,235.20 - Step 6: Final answer
x = 78,193.80
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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.