Finding the Fourth Proportional to 143,276.30, 197,717.36 and 79,612.46
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Solution
The fourth proportional to 143,276.30, 197,717.36 and 79,612.46 is: 109,863.00
Step by Step Solution
- Step 1: Write the proportion equation
143,276.30 : 197,717.36 = 79,612.46 : x - Step 2: Convert to fraction form
143,276.30/197,717.36 = 79,612.46/x - Step 3: Cross multiply
143,276.30x = 197,717.36 × 79,612.46 - Step 4: Simplify right side
143,276.30x = 15,740,764,027.66 - Step 5: Solve for x
x = 15,740,764,027.66/143,276.30 - Step 6: Final answer
x = 109,863.00
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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.