Finding the Fourth Proportional to 118,224.70, 176,905.05 and 87,120.70
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Solution
The fourth proportional to 118,224.70, 176,905.05 and 87,120.70 is: 130,362.71
Step by Step Solution
- Step 1: Write the proportion equation
118,224.70 : 176,905.05 = 87,120.70 : x - Step 2: Convert to fraction form
118,224.70/176,905.05 = 87,120.70/x - Step 3: Cross multiply
118,224.70x = 176,905.05 × 87,120.70 - Step 4: Simplify right side
118,224.70x = 15,412,091,789.54 - Step 5: Solve for x
x = 15,412,091,789.54/118,224.70 - Step 6: Final answer
x = 130,362.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.