Finding the Fourth Proportional to 117,009.40, 175,514.10 and 115,259.80
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Solution
The fourth proportional to 117,009.40, 175,514.10 and 115,259.80 is: 172,889.70
Step by Step Solution
- Step 1: Write the proportion equation
117,009.40 : 175,514.10 = 115,259.80 : x - Step 2: Convert to fraction form
117,009.40/175,514.10 = 115,259.80/x - Step 3: Cross multiply
117,009.40x = 175,514.10 × 115,259.80 - Step 4: Simplify right side
117,009.40x = 20,229,720,063.18 - Step 5: Solve for x
x = 20,229,720,063.18/117,009.40 - Step 6: Final answer
x = 172,889.70
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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.