Finding the Fourth Proportional to 122,199.84, 168,583.68 and 84,408.48
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Solution
The fourth proportional to 122,199.84, 168,583.68 and 84,408.48 is: 116,447.72
Step by Step Solution
- Step 1: Write the proportion equation
122,199.84 : 168,583.68 = 84,408.48 : x - Step 2: Convert to fraction form
122,199.84/168,583.68 = 84,408.48/x - Step 3: Cross multiply
122,199.84x = 168,583.68 × 84,408.48 - Step 4: Simplify right side
122,199.84x = 14,229,892,181.61 - Step 5: Solve for x
x = 14,229,892,181.61/122,199.84 - Step 6: Final answer
x = 116,447.72
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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.