Finding the Fourth Proportional to 135,278.24, 202,917.38 and 76,156.36
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Solution
The fourth proportional to 135,278.24, 202,917.38 and 76,156.36 is: 114,234.55
Step by Step Solution
- Step 1: Write the proportion equation
135,278.24 : 202,917.38 = 76,156.36 : x - Step 2: Convert to fraction form
135,278.24/202,917.38 = 76,156.36/x - Step 3: Cross multiply
135,278.24x = 202,917.38 × 76,156.36 - Step 4: Simplify right side
135,278.24x = 15,453,449,041.54 - Step 5: Solve for x
x = 15,453,449,041.54/135,278.24 - Step 6: Final answer
x = 114,234.55
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1.5x scale
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.