Finding the Fourth Proportional to 106,403.76, 146,836.67 and 58,656.96
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Solution
The fourth proportional to 106,403.76, 146,836.67 and 58,656.96 is: 80,946.32
Step by Step Solution
- Step 1: Write the proportion equation
106,403.76 : 146,836.67 = 58,656.96 : x - Step 2: Convert to fraction form
106,403.76/146,836.67 = 58,656.96/x - Step 3: Cross multiply
106,403.76x = 146,836.67 × 58,656.96 - Step 4: Simplify right side
106,403.76x = 8,612,992,385.44 - Step 5: Solve for x
x = 8,612,992,385.44/106,403.76 - Step 6: Final answer
x = 80,946.32
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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.