Finding the Fourth Proportional to 122,645.48, 169,250.50 and 68,932.68
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Solution
The fourth proportional to 122,645.48, 169,250.50 and 68,932.68 is: 95,126.95
Step by Step Solution
- Step 1: Write the proportion equation
122,645.48 : 169,250.50 = 68,932.68 : x - Step 2: Convert to fraction form
122,645.48/169,250.50 = 68,932.68/x - Step 3: Cross multiply
122,645.48x = 169,250.50 × 68,932.68 - Step 4: Simplify right side
122,645.48x = 11,666,890,556.34 - Step 5: Solve for x
x = 11,666,890,556.34/122,645.48 - Step 6: Final answer
x = 95,126.95
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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.