Finding the Fourth Proportional to 105,879.36, 146,113.77 and 58,135.79
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Solution
The fourth proportional to 105,879.36, 146,113.77 and 58,135.79 is: 80,227.52
Step by Step Solution
- Step 1: Write the proportion equation
105,879.36 : 146,113.77 = 58,135.79 : x - Step 2: Convert to fraction form
105,879.36/146,113.77 = 58,135.79/x - Step 3: Cross multiply
105,879.36x = 146,113.77 × 58,135.79 - Step 4: Simplify right side
105,879.36x = 8,494,439,101.23 - Step 5: Solve for x
x = 8,494,439,101.23/105,879.36 - Step 6: Final answer
x = 80,227.52
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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.