Finding the Fourth Proportional to 139,477.05, 192,479.37 and 75,814.68
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Solution
The fourth proportional to 139,477.05, 192,479.37 and 75,814.68 is: 104,624.82
Step by Step Solution
- Step 1: Write the proportion equation
139,477.05 : 192,479.37 = 75,814.68 : x - Step 2: Convert to fraction form
139,477.05/192,479.37 = 75,814.68/x - Step 3: Cross multiply
139,477.05x = 192,479.37 × 75,814.68 - Step 4: Simplify right side
139,477.05x = 14,592,761,843.15 - Step 5: Solve for x
x = 14,592,761,843.15/139,477.05 - Step 6: Final answer
x = 104,624.82
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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.