Finding the Fourth Proportional to 145,991.44, 201,453.08 and 107,771.28
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Solution
The fourth proportional to 145,991.44, 201,453.08 and 107,771.28 is: 148,713.21
Step by Step Solution
- Step 1: Write the proportion equation
145,991.44 : 201,453.08 = 107,771.28 : x - Step 2: Convert to fraction form
145,991.44/201,453.08 = 107,771.28/x - Step 3: Cross multiply
145,991.44x = 201,453.08 × 107,771.28 - Step 4: Simplify right side
145,991.44x = 21,710,856,291.54 - Step 5: Solve for x
x = 21,710,856,291.54/145,991.44 - Step 6: Final answer
x = 148,713.21
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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.