Finding the Fourth Proportional to 105,879.64, 146,114.19 and 58,136.08
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Solution
The fourth proportional to 105,879.64, 146,114.19 and 58,136.08 is: 80,227.95
Step by Step Solution
- Step 1: Write the proportion equation
105,879.64 : 146,114.19 = 58,136.08 : x - Step 2: Convert to fraction form
105,879.64/146,114.19 = 58,136.08/x - Step 3: Cross multiply
105,879.64x = 146,114.19 × 58,136.08 - Step 4: Simplify right side
105,879.64x = 8,494,506,238.98 - Step 5: Solve for x
x = 8,494,506,238.98/105,879.64 - Step 6: Final answer
x = 80,227.95
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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.