Finding the Fourth Proportional to 121,403.36, 167,523.12 and 73,668.32
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Solution
The fourth proportional to 121,403.36, 167,523.12 and 73,668.32 is: 101,654.08
Step by Step Solution
- Step 1: Write the proportion equation
121,403.36 : 167,523.12 = 73,668.32 : x - Step 2: Convert to fraction form
121,403.36/167,523.12 = 73,668.32/x - Step 3: Cross multiply
121,403.36x = 167,523.12 × 73,668.32 - Step 4: Simplify right side
121,403.36x = 12,341,146,811.56 - Step 5: Solve for x
x = 12,341,146,811.56/121,403.36 - Step 6: Final answer
x = 101,654.08
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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.