Finding the Fourth Proportional to 165,743.40, 248,615.10 and 102,757.80
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Solution
The fourth proportional to 165,743.40, 248,615.10 and 102,757.80 is: 154,136.70
Step by Step Solution
- Step 1: Write the proportion equation
165,743.40 : 248,615.10 = 102,757.80 : x - Step 2: Convert to fraction form
165,743.40/248,615.10 = 102,757.80/x - Step 3: Cross multiply
165,743.40x = 248,615.10 × 102,757.80 - Step 4: Simplify right side
165,743.40x = 25,547,140,722.78 - Step 5: Solve for x
x = 25,547,140,722.78/165,743.40 - Step 6: Final answer
x = 154,136.70
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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.