Finding the Fourth Proportional to 129,154.44, 193,165.08 and 115,022.58
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Solution
The fourth proportional to 129,154.44, 193,165.08 and 115,022.58 is: 172,029.28
Step by Step Solution
- Step 1: Write the proportion equation
129,154.44 : 193,165.08 = 115,022.58 : x - Step 2: Convert to fraction form
129,154.44/193,165.08 = 115,022.58/x - Step 3: Cross multiply
129,154.44x = 193,165.08 × 115,022.58 - Step 4: Simplify right side
129,154.44x = 22,218,345,867.51 - Step 5: Solve for x
x = 22,218,345,867.51/129,154.44 - Step 6: Final answer
x = 172,029.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.