Finding the Fourth Proportional to 157,713.60, 217,649.92 and 86,097.44
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Solution
The fourth proportional to 157,713.60, 217,649.92 and 86,097.44 is: 118,817.28
Step by Step Solution
- Step 1: Write the proportion equation
157,713.60 : 217,649.92 = 86,097.44 : x - Step 2: Convert to fraction form
157,713.60/217,649.92 = 86,097.44/x - Step 3: Cross multiply
157,713.60x = 217,649.92 × 86,097.44 - Step 4: Simplify right side
157,713.60x = 18,739,100,928.20 - Step 5: Solve for x
x = 18,739,100,928.20/157,713.60 - Step 6: Final answer
x = 118,817.28
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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.