Finding the Fourth Proportional to 150,031.68, 207,043.20 and 82,963.68
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Solution
The fourth proportional to 150,031.68, 207,043.20 and 82,963.68 is: 114,489.59
Step by Step Solution
- Step 1: Write the proportion equation
150,031.68 : 207,043.20 = 82,963.68 : x - Step 2: Convert to fraction form
150,031.68/207,043.20 = 82,963.68/x - Step 3: Cross multiply
150,031.68x = 207,043.20 × 82,963.68 - Step 4: Simplify right side
150,031.68x = 17,177,065,790.98 - Step 5: Solve for x
x = 17,177,065,790.98/150,031.68 - Step 6: Final answer
x = 114,489.59
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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.