Finding the Fourth Proportional to 106,668.92, 147,160.86 and 64,221.68
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Solution
The fourth proportional to 106,668.92, 147,160.86 and 64,221.68 is: 88,600.48
Step by Step Solution
- Step 1: Write the proportion equation
106,668.92 : 147,160.86 = 64,221.68 : x - Step 2: Convert to fraction form
106,668.92/147,160.86 = 64,221.68/x - Step 3: Cross multiply
106,668.92x = 147,160.86 × 64,221.68 - Step 4: Simplify right side
106,668.92x = 9,450,917,659.44 - Step 5: Solve for x
x = 9,450,917,659.44/106,668.92 - Step 6: Final answer
x = 88,600.48
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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.