Finding the Fourth Proportional to 176,140.94, 243,247.05 and 121,832.19
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Solution
The fourth proportional to 176,140.94, 243,247.05 and 121,832.19 is: 168,247.78
Step by Step Solution
- Step 1: Write the proportion equation
176,140.94 : 243,247.05 = 121,832.19 : x - Step 2: Convert to fraction form
176,140.94/243,247.05 = 121,832.19/x - Step 3: Cross multiply
176,140.94x = 243,247.05 × 121,832.19 - Step 4: Simplify right side
176,140.94x = 29,635,320,812.54 - Step 5: Solve for x
x = 29,635,320,812.54/176,140.94 - Step 6: Final answer
x = 168,247.78
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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.