Finding the Fourth Proportional to 176,721.54, 243,873.75 and 105,102.75
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Solution
The fourth proportional to 176,721.54, 243,873.75 and 105,102.75 is: 145,040.62
Step by Step Solution
- Step 1: Write the proportion equation
176,721.54 : 243,873.75 = 105,102.75 : x - Step 2: Convert to fraction form
176,721.54/243,873.75 = 105,102.75/x - Step 3: Cross multiply
176,721.54x = 243,873.75 × 105,102.75 - Step 4: Simplify right side
176,721.54x = 25,631,801,777.81 - Step 5: Solve for x
x = 25,631,801,777.81/176,721.54 - Step 6: Final answer
x = 145,040.62
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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.