Finding the Fourth Proportional to 106,378.68, 159,713.82 and 66,818.28
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Solution
The fourth proportional to 106,378.68, 159,713.82 and 66,818.28 is: 100,319.00
Step by Step Solution
- Step 1: Write the proportion equation
106,378.68 : 159,713.82 = 66,818.28 : x - Step 2: Convert to fraction form
106,378.68/159,713.82 = 66,818.28/x - Step 3: Cross multiply
106,378.68x = 159,713.82 × 66,818.28 - Step 4: Simplify right side
106,378.68x = 10,671,802,744.63 - Step 5: Solve for x
x = 10,671,802,744.63/106,378.68 - Step 6: Final answer
x = 100,319.00
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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.