Finding the Fourth Proportional to 106,515.08, 146,991.28 and 58,768.40
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Solution
The fourth proportional to 106,515.08, 146,991.28 and 58,768.40 is: 81,100.65
Step by Step Solution
- Step 1: Write the proportion equation
106,515.08 : 146,991.28 = 58,768.40 : x - Step 2: Convert to fraction form
106,515.08/146,991.28 = 58,768.40/x - Step 3: Cross multiply
106,515.08x = 146,991.28 × 58,768.40 - Step 4: Simplify right side
106,515.08x = 8,638,442,339.55 - Step 5: Solve for x
x = 8,638,442,339.55/106,515.08 - Step 6: Final answer
x = 81,100.65
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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.