Finding the Fourth Proportional to 137,183.39, 206,803.29 and 128,038.99
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Solution
The fourth proportional to 137,183.39, 206,803.29 and 128,038.99 is: 193,018.15
Step by Step Solution
- Step 1: Write the proportion equation
137,183.39 : 206,803.29 = 128,038.99 : x - Step 2: Convert to fraction form
137,183.39/206,803.29 = 128,038.99/x - Step 3: Cross multiply
137,183.39x = 206,803.29 × 128,038.99 - Step 4: Simplify right side
137,183.39x = 26,478,884,380.28 - Step 5: Solve for x
x = 26,478,884,380.28/137,183.39 - Step 6: Final answer
x = 193,018.15
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.