Finding the Fourth Proportional to 192,873.75, 266,165.48 and 107,990.82
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Solution
The fourth proportional to 192,873.75, 266,165.48 and 107,990.82 is: 149,027.16
Step by Step Solution
- Step 1: Write the proportion equation
192,873.75 : 266,165.48 = 107,990.82 : x - Step 2: Convert to fraction form
192,873.75/266,165.48 = 107,990.82/x - Step 3: Cross multiply
192,873.75x = 266,165.48 × 107,990.82 - Step 4: Simplify right side
192,873.75x = 28,743,427,900.94 - Step 5: Solve for x
x = 28,743,427,900.94/192,873.75 - Step 6: Final answer
x = 149,027.16
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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.