Finding the Fourth Proportional to 165,745.40, 248,618.10 and 102,759.80
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Solution
The fourth proportional to 165,745.40, 248,618.10 and 102,759.80 is: 154,139.70
Step by Step Solution
- Step 1: Write the proportion equation
165,745.40 : 248,618.10 = 102,759.80 : x - Step 2: Convert to fraction form
165,745.40/248,618.10 = 102,759.80/x - Step 3: Cross multiply
165,745.40x = 248,618.10 × 102,759.80 - Step 4: Simplify right side
165,745.40x = 25,547,946,232.38 - Step 5: Solve for x
x = 25,547,946,232.38/165,745.40 - Step 6: Final answer
x = 154,139.70
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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.