Finding the Fourth Proportional to 153,151.10, 229,576.67 and 85,716.08
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Solution
The fourth proportional to 153,151.10, 229,576.67 and 85,716.08 is: 128,490.17
Step by Step Solution
- Step 1: Write the proportion equation
153,151.10 : 229,576.67 = 85,716.08 : x - Step 2: Convert to fraction form
153,151.10/229,576.67 = 85,716.08/x - Step 3: Cross multiply
153,151.10x = 229,576.67 × 85,716.08 - Step 4: Simplify right side
153,151.10x = 19,678,411,278.26 - Step 5: Solve for x
x = 19,678,411,278.26/153,151.10 - Step 6: Final answer
x = 128,490.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.