Finding the Fourth Proportional to 129,312.84, 193,825.44 and 54,410.88
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Solution
The fourth proportional to 129,312.84, 193,825.44 and 54,410.88 is: 81,555.80
Step by Step Solution
- Step 1: Write the proportion equation
129,312.84 : 193,825.44 = 54,410.88 : x - Step 2: Convert to fraction form
129,312.84/193,825.44 = 54,410.88/x - Step 3: Cross multiply
129,312.84x = 193,825.44 × 54,410.88 - Step 4: Simplify right side
129,312.84x = 10,546,212,756.79 - Step 5: Solve for x
x = 10,546,212,756.79/129,312.84 - Step 6: Final answer
x = 81,555.80
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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.