Finding the Fourth Proportional to 139,536.84, 192,560.40 and 75,874.80
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Solution
The fourth proportional to 139,536.84, 192,560.40 and 75,874.80 is: 104,706.99
Step by Step Solution
- Step 1: Write the proportion equation
139,536.84 : 192,560.40 = 75,874.80 : x - Step 2: Convert to fraction form
139,536.84/192,560.40 = 75,874.80/x - Step 3: Cross multiply
139,536.84x = 192,560.40 × 75,874.80 - Step 4: Simplify right side
139,536.84x = 14,610,481,837.92 - Step 5: Solve for x
x = 14,610,481,837.92/139,536.84 - Step 6: Final answer
x = 104,706.99
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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.