Finding the Fourth Proportional to 189,867.19, 261,921.19 and 125,268.34
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Solution
The fourth proportional to 189,867.19, 261,921.19 and 125,268.34 is: 172,807.28
Step by Step Solution
- Step 1: Write the proportion equation
189,867.19 : 261,921.19 = 125,268.34 : x - Step 2: Convert to fraction form
189,867.19/261,921.19 = 125,268.34/x - Step 3: Cross multiply
189,867.19x = 261,921.19 × 125,268.34 - Step 4: Simplify right side
189,867.19x = 32,810,431,714.15 - Step 5: Solve for x
x = 32,810,431,714.15/189,867.19 - Step 6: Final answer
x = 172,807.28
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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.