Finding the Fourth Proportional to 122,768.06, 169,394.48 and 71,770.94
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Solution
The fourth proportional to 122,768.06, 169,394.48 and 71,770.94 is: 99,029.02
Step by Step Solution
- Step 1: Write the proportion equation
122,768.06 : 169,394.48 = 71,770.94 : x - Step 2: Convert to fraction form
122,768.06/169,394.48 = 71,770.94/x - Step 3: Cross multiply
122,768.06x = 169,394.48 × 71,770.94 - Step 4: Simplify right side
122,768.06x = 12,157,601,060.41 - Step 5: Solve for x
x = 12,157,601,060.41/122,768.06 - Step 6: Final answer
x = 99,029.02
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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.