Finding the Fourth Proportional to 120,490.84, 166,278.68 and 66,776.88
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Solution
The fourth proportional to 120,490.84, 166,278.68 and 66,776.88 is: 92,152.83
Step by Step Solution
- Step 1: Write the proportion equation
120,490.84 : 166,278.68 = 66,776.88 : x - Step 2: Convert to fraction form
120,490.84/166,278.68 = 66,776.88/x - Step 3: Cross multiply
120,490.84x = 166,278.68 × 66,776.88 - Step 4: Simplify right side
120,490.84x = 11,103,571,460.92 - Step 5: Solve for x
x = 11,103,571,460.92/120,490.84 - Step 6: Final answer
x = 92,152.83
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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.