Finding the Fourth Proportional to 172,117.44, 237,455.70 and 126,902.70
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Solution
The fourth proportional to 172,117.44, 237,455.70 and 126,902.70 is: 175,076.79
Step by Step Solution
- Step 1: Write the proportion equation
172,117.44 : 237,455.70 = 126,902.70 : x - Step 2: Convert to fraction form
172,117.44/237,455.70 = 126,902.70/x - Step 3: Cross multiply
172,117.44x = 237,455.70 × 126,902.70 - Step 4: Simplify right side
172,117.44x = 30,133,769,460.39 - Step 5: Solve for x
x = 30,133,769,460.39/172,117.44 - Step 6: Final answer
x = 175,076.79
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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.