Finding the Fourth Proportional to 135,519.99, 187,015.11 and 75,090.41
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Solution
The fourth proportional to 135,519.99, 187,015.11 and 75,090.41 is: 103,623.39
Step by Step Solution
- Step 1: Write the proportion equation
135,519.99 : 187,015.11 = 75,090.41 : x - Step 2: Convert to fraction form
135,519.99/187,015.11 = 75,090.41/x - Step 3: Cross multiply
135,519.99x = 187,015.11 × 75,090.41 - Step 4: Simplify right side
135,519.99x = 14,043,040,351.02 - Step 5: Solve for x
x = 14,043,040,351.02/135,519.99 - Step 6: Final answer
x = 103,623.39
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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.