Finding the Fourth Proportional to 122,273.38, 168,767.25 and 74,553.02
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Solution
The fourth proportional to 122,273.38, 168,767.25 and 74,553.02 is: 102,901.45
Step by Step Solution
- Step 1: Write the proportion equation
122,273.38 : 168,767.25 = 74,553.02 : x - Step 2: Convert to fraction form
122,273.38/168,767.25 = 74,553.02/x - Step 3: Cross multiply
122,273.38x = 168,767.25 × 74,553.02 - Step 4: Simplify right side
122,273.38x = 12,582,108,164.60 - Step 5: Solve for x
x = 12,582,108,164.60/122,273.38 - Step 6: Final answer
x = 102,901.45
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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.