Finding the Fourth Proportional to 149,076.48, 205,713.09 and 87,812.94
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Solution
The fourth proportional to 149,076.48, 205,713.09 and 87,812.94 is: 121,174.52
Step by Step Solution
- Step 1: Write the proportion equation
149,076.48 : 205,713.09 = 87,812.94 : x - Step 2: Convert to fraction form
149,076.48/205,713.09 = 87,812.94/x - Step 3: Cross multiply
149,076.48x = 205,713.09 × 87,812.94 - Step 4: Simplify right side
149,076.48x = 18,064,271,229.38 - Step 5: Solve for x
x = 18,064,271,229.38/149,076.48 - Step 6: Final answer
x = 121,174.52
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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.