Finding the Fourth Proportional to 120,533.60, 166,320.99 and 66,818.13
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Solution
The fourth proportional to 120,533.60, 166,320.99 and 66,818.13 is: 92,200.50
Step by Step Solution
- Step 1: Write the proportion equation
120,533.60 : 166,320.99 = 66,818.13 : x - Step 2: Convert to fraction form
120,533.60/166,320.99 = 66,818.13/x - Step 3: Cross multiply
120,533.60x = 166,320.99 × 66,818.13 - Step 4: Simplify right side
120,533.60x = 11,113,257,531.55 - Step 5: Solve for x
x = 11,113,257,531.55/120,533.60 - Step 6: Final answer
x = 92,200.50
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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.