Finding the Fourth Proportional to 131,983.65, 182,135.06 and 74,621.98
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Solution
The fourth proportional to 131,983.65, 182,135.06 and 74,621.98 is: 102,976.99
Step by Step Solution
- Step 1: Write the proportion equation
131,983.65 : 182,135.06 = 74,621.98 : x - Step 2: Convert to fraction form
131,983.65/182,135.06 = 74,621.98/x - Step 3: Cross multiply
131,983.65x = 182,135.06 × 74,621.98 - Step 4: Simplify right side
131,983.65x = 13,591,279,218.84 - Step 5: Solve for x
x = 13,591,279,218.84/131,983.65 - Step 6: Final answer
x = 102,976.99
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1.5x scale
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.