Finding the Fourth Proportional to 165,687.35, 228,647.09 and 101,142.99
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Solution
The fourth proportional to 165,687.35, 228,647.09 and 101,142.99 is: 139,576.44
Step by Step Solution
- Step 1: Write the proportion equation
165,687.35 : 228,647.09 = 101,142.99 : x - Step 2: Convert to fraction form
165,687.35/228,647.09 = 101,142.99/x - Step 3: Cross multiply
165,687.35x = 228,647.09 × 101,142.99 - Step 4: Simplify right side
165,687.35x = 23,126,050,590.26 - Step 5: Solve for x
x = 23,126,050,590.26/165,687.35 - Step 6: Final answer
x = 139,576.44
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.