Finding the Fourth Proportional to 150,601.70, 207,829.11 and 81,690.99
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Solution
The fourth proportional to 150,601.70, 207,829.11 and 81,690.99 is: 112,732.90
Step by Step Solution
- Step 1: Write the proportion equation
150,601.70 : 207,829.11 = 81,690.99 : x - Step 2: Convert to fraction form
150,601.70/207,829.11 = 81,690.99/x - Step 3: Cross multiply
150,601.70x = 207,829.11 × 81,690.99 - Step 4: Simplify right side
150,601.70x = 16,977,765,746.72 - Step 5: Solve for x
x = 16,977,765,746.72/150,601.70 - Step 6: Final answer
x = 112,732.90
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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.