Finding the Fourth Proportional to 115,290.71, 171,789.92 and 102,714.09
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Solution
The fourth proportional to 115,290.71, 171,789.92 and 102,714.09 is: 153,050.02
Step by Step Solution
- Step 1: Write the proportion equation
115,290.71 : 171,789.92 = 102,714.09 : x - Step 2: Convert to fraction form
115,290.71/171,789.92 = 102,714.09/x - Step 3: Cross multiply
115,290.71x = 171,789.92 × 102,714.09 - Step 4: Simplify right side
115,290.71x = 17,645,245,786.57 - Step 5: Solve for x
x = 17,645,245,786.57/115,290.71 - Step 6: Final answer
x = 153,050.02
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.