Finding the Fourth Proportional to 99,172.17, 136,857.51 and 54,460.17
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Solution
The fourth proportional to 99,172.17, 136,857.51 and 54,460.17 is: 75,154.99
Step by Step Solution
- Step 1: Write the proportion equation
99,172.17 : 136,857.51 = 54,460.17 : x - Step 2: Convert to fraction form
99,172.17/136,857.51 = 54,460.17/x - Step 3: Cross multiply
99,172.17x = 136,857.51 × 54,460.17 - Step 4: Simplify right side
99,172.17x = 7,453,283,260.38 - Step 5: Solve for x
x = 7,453,283,260.38/99,172.17 - Step 6: Final answer
x = 75,154.99
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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.