Finding the Fourth Proportional to 189,569.43, 261,658.08 and 117,906.84
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Solution
The fourth proportional to 189,569.43, 261,658.08 and 117,906.84 is: 162,743.95
Step by Step Solution
- Step 1: Write the proportion equation
189,569.43 : 261,658.08 = 117,906.84 : x - Step 2: Convert to fraction form
189,569.43/261,658.08 = 117,906.84/x - Step 3: Cross multiply
189,569.43x = 261,658.08 × 117,906.84 - Step 4: Simplify right side
189,569.43x = 30,851,277,373.27 - Step 5: Solve for x
x = 30,851,277,373.27/189,569.43 - Step 6: Final answer
x = 162,743.95
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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.