Finding the Fourth Proportional to 179,178.72, 247,183.56 and 107,434.05
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Solution
The fourth proportional to 179,178.72, 247,183.56 and 107,434.05 is: 148,209.18
Step by Step Solution
- Step 1: Write the proportion equation
179,178.72 : 247,183.56 = 107,434.05 : x - Step 2: Convert to fraction form
179,178.72/247,183.56 = 107,434.05/x - Step 3: Cross multiply
179,178.72x = 247,183.56 × 107,434.05 - Step 4: Simplify right side
179,178.72x = 26,555,930,944.22 - Step 5: Solve for x
x = 26,555,930,944.22/179,178.72 - Step 6: Final answer
x = 148,209.18
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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.