Finding the Fourth Proportional to 189,747.08, 261,973.14 and 121,793.48
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Solution
The fourth proportional to 189,747.08, 261,973.14 and 121,793.48 is: 168,153.42
Step by Step Solution
- Step 1: Write the proportion equation
189,747.08 : 261,973.14 = 121,793.48 : x - Step 2: Convert to fraction form
189,747.08/261,973.14 = 121,793.48/x - Step 3: Cross multiply
189,747.08x = 261,973.14 × 121,793.48 - Step 4: Simplify right side
189,747.08x = 31,906,620,387.13 - Step 5: Solve for x
x = 31,906,620,387.13/189,747.08 - Step 6: Final answer
x = 168,153.42
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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.