Finding the Fourth Proportional to 135,930.12, 204,024.92 and 83,442.12
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Solution
The fourth proportional to 135,930.12, 204,024.92 and 83,442.12 is: 125,242.82
Step by Step Solution
- Step 1: Write the proportion equation
135,930.12 : 204,024.92 = 83,442.12 : x - Step 2: Convert to fraction form
135,930.12/204,024.92 = 83,442.12/x - Step 3: Cross multiply
135,930.12x = 204,024.92 × 83,442.12 - Step 4: Simplify right side
135,930.12x = 17,024,271,440.42 - Step 5: Solve for x
x = 17,024,271,440.42/135,930.12 - Step 6: Final answer
x = 125,242.82
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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.