Finding the Fourth Proportional to 139,195.19, 192,089.87 and 75,532.99
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Solution
The fourth proportional to 139,195.19, 192,089.87 and 75,532.99 is: 104,235.80
Step by Step Solution
- Step 1: Write the proportion equation
139,195.19 : 192,089.87 = 75,532.99 : x - Step 2: Convert to fraction form
139,195.19/192,089.87 = 75,532.99/x - Step 3: Cross multiply
139,195.19x = 192,089.87 × 75,532.99 - Step 4: Simplify right side
139,195.19x = 14,509,121,655.17 - Step 5: Solve for x
x = 14,509,121,655.17/139,195.19 - Step 6: Final answer
x = 104,235.80
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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.