Finding the Fourth Proportional to 135,442.80, 202,977.36 and 102,126.25
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Solution
The fourth proportional to 135,442.80, 202,977.36 and 102,126.25 is: 153,048.50
Step by Step Solution
- Step 1: Write the proportion equation
135,442.80 : 202,977.36 = 102,126.25 : x - Step 2: Convert to fraction form
135,442.80/202,977.36 = 102,126.25/x - Step 3: Cross multiply
135,442.80x = 202,977.36 × 102,126.25 - Step 4: Simplify right side
135,442.80x = 20,729,316,611.70 - Step 5: Solve for x
x = 20,729,316,611.70/135,442.80 - Step 6: Final answer
x = 153,048.50
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1.5x scale
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.