Finding the Fourth Proportional to 147,832.74, 221,745.97 and 47,992.79
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Solution
The fourth proportional to 147,832.74, 221,745.97 and 47,992.79 is: 71,988.17
Step by Step Solution
- Step 1: Write the proportion equation
147,832.74 : 221,745.97 = 47,992.79 : x - Step 2: Convert to fraction form
147,832.74/221,745.97 = 47,992.79/x - Step 3: Cross multiply
147,832.74x = 221,745.97 × 47,992.79 - Step 4: Simplify right side
147,832.74x = 10,642,207,771.56 - Step 5: Solve for x
x = 10,642,207,771.56/147,832.74 - Step 6: Final answer
x = 71,988.17
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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.