Finding the Fourth Proportional to 136,750.80, 205,126.20 and 122,005.20
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Solution
The fourth proportional to 136,750.80, 205,126.20 and 122,005.20 is: 183,007.80
Step by Step Solution
- Step 1: Write the proportion equation
136,750.80 : 205,126.20 = 122,005.20 : x - Step 2: Convert to fraction form
136,750.80/205,126.20 = 122,005.20/x - Step 3: Cross multiply
136,750.80x = 205,126.20 × 122,005.20 - Step 4: Simplify right side
136,750.80x = 25,026,463,056.24 - Step 5: Solve for x
x = 25,026,463,056.24/136,750.80 - Step 6: Final answer
x = 183,007.80
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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.