Finding the Fourth Proportional to 106,018.17, 146,306.19 and 57,620.09
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Solution
The fourth proportional to 106,018.17, 146,306.19 and 57,620.09 is: 79,516.32
Step by Step Solution
- Step 1: Write the proportion equation
106,018.17 : 146,306.19 = 57,620.09 : x - Step 2: Convert to fraction form
106,018.17/146,306.19 = 57,620.09/x - Step 3: Cross multiply
106,018.17x = 146,306.19 × 57,620.09 - Step 4: Simplify right side
106,018.17x = 8,430,175,103.83 - Step 5: Solve for x
x = 8,430,175,103.83/106,018.17 - Step 6: Final answer
x = 79,516.32
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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.