Finding the Fourth Proportional to 139,588.75, 209,281.05 and 44,764.96
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Solution
The fourth proportional to 139,588.75, 209,281.05 and 44,764.96 is: 67,114.70
Step by Step Solution
- Step 1: Write the proportion equation
139,588.75 : 209,281.05 = 44,764.96 : x - Step 2: Convert to fraction form
139,588.75/209,281.05 = 44,764.96/x - Step 3: Cross multiply
139,588.75x = 209,281.05 × 44,764.96 - Step 4: Simplify right side
139,588.75x = 9,368,457,753.93 - Step 5: Solve for x
x = 9,368,457,753.93/139,588.75 - Step 6: Final answer
x = 67,114.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.