Finding the Fourth Proportional to 124,717.68, 186,777.84 and 90,893.04
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Solution
The fourth proportional to 124,717.68, 186,777.84 and 90,893.04 is: 136,121.88
Step by Step Solution
- Step 1: Write the proportion equation
124,717.68 : 186,777.84 = 90,893.04 : x - Step 2: Convert to fraction form
124,717.68/186,777.84 = 90,893.04/x - Step 3: Cross multiply
124,717.68x = 186,777.84 × 90,893.04 - Step 4: Simplify right side
124,717.68x = 16,976,805,682.23 - Step 5: Solve for x
x = 16,976,805,682.23/124,717.68 - Step 6: Final answer
x = 136,121.88
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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.