Finding the Fourth Proportional to 136,907.40, 205,368.44 and 43,420.44
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Solution
The fourth proportional to 136,907.40, 205,368.44 and 43,420.44 is: 65,132.99
Step by Step Solution
- Step 1: Write the proportion equation
136,907.40 : 205,368.44 = 43,420.44 : x - Step 2: Convert to fraction form
136,907.40/205,368.44 = 43,420.44/x - Step 3: Cross multiply
136,907.40x = 205,368.44 × 43,420.44 - Step 4: Simplify right side
136,907.40x = 8,917,188,026.91 - Step 5: Solve for x
x = 8,917,188,026.91/136,907.40 - Step 6: Final answer
x = 65,132.99
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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.