Finding the Fourth Proportional to 107,551.20, 161,305.20 and 51,391.20
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Solution
The fourth proportional to 107,551.20, 161,305.20 and 51,391.20 is: 77,076.48
Step by Step Solution
- Step 1: Write the proportion equation
107,551.20 : 161,305.20 = 51,391.20 : x - Step 2: Convert to fraction form
107,551.20/161,305.20 = 51,391.20/x - Step 3: Cross multiply
107,551.20x = 161,305.20 × 51,391.20 - Step 4: Simplify right side
107,551.20x = 8,289,667,794.24 - Step 5: Solve for x
x = 8,289,667,794.24/107,551.20 - Step 6: Final answer
x = 77,076.48
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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.