Finding the Fourth Proportional to 143,343.84, 197,800.68 and 79,677.84
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Solution
The fourth proportional to 143,343.84, 197,800.68 and 79,677.84 is: 109,947.74
Step by Step Solution
- Step 1: Write the proportion equation
143,343.84 : 197,800.68 = 79,677.84 : x - Step 2: Convert to fraction form
143,343.84/197,800.68 = 79,677.84/x - Step 3: Cross multiply
143,343.84x = 197,800.68 × 79,677.84 - Step 4: Simplify right side
143,343.84x = 15,760,330,932.93 - Step 5: Solve for x
x = 15,760,330,932.93/143,343.84 - Step 6: Final answer
x = 109,947.74
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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.