Finding the Fourth Proportional to 139,214.21, 192,115.71 and 75,551.99
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Solution
The fourth proportional to 139,214.21, 192,115.71 and 75,551.99 is: 104,261.80
Step by Step Solution
- Step 1: Write the proportion equation
139,214.21 : 192,115.71 = 75,551.99 : x - Step 2: Convert to fraction form
139,214.21/192,115.71 = 75,551.99/x - Step 3: Cross multiply
139,214.21x = 192,115.71 × 75,551.99 - Step 4: Simplify right side
139,214.21x = 14,514,724,200.76 - Step 5: Solve for x
x = 14,514,724,200.76/139,214.21 - Step 6: Final answer
x = 104,261.80
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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.