Finding the Fourth Proportional to 120,656.24, 166,520.38 and 69,668.84
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Solution
The fourth proportional to 120,656.24, 166,520.38 and 69,668.84 is: 96,151.53
Step by Step Solution
- Step 1: Write the proportion equation
120,656.24 : 166,520.38 = 69,668.84 : x - Step 2: Convert to fraction form
120,656.24/166,520.38 = 69,668.84/x - Step 3: Cross multiply
120,656.24x = 166,520.38 × 69,668.84 - Step 4: Simplify right side
120,656.24x = 11,601,281,928.41 - Step 5: Solve for x
x = 11,601,281,928.41/120,656.24 - Step 6: Final answer
x = 96,151.53
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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.