Finding the Fourth Proportional to 106,383.36, 146,652.12 and 68,138.40
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Solution
The fourth proportional to 106,383.36, 146,652.12 and 68,138.40 is: 93,930.49
Step by Step Solution
- Step 1: Write the proportion equation
106,383.36 : 146,652.12 = 68,138.40 : x - Step 2: Convert to fraction form
106,383.36/146,652.12 = 68,138.40/x - Step 3: Cross multiply
106,383.36x = 146,652.12 × 68,138.40 - Step 4: Simplify right side
106,383.36x = 9,992,640,813.41 - Step 5: Solve for x
x = 9,992,640,813.41/106,383.36 - Step 6: Final answer
x = 93,930.49
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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.