Finding the Fourth Proportional to 119,120.99, 164,385.82 and 65,405.54
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Solution
The fourth proportional to 119,120.99, 164,385.82 and 65,405.54 is: 90,259.02
Step by Step Solution
- Step 1: Write the proportion equation
119,120.99 : 164,385.82 = 65,405.54 : x - Step 2: Convert to fraction form
119,120.99/164,385.82 = 65,405.54/x - Step 3: Cross multiply
119,120.99x = 164,385.82 × 65,405.54 - Step 4: Simplify right side
119,120.99x = 10,751,743,325.44 - Step 5: Solve for x
x = 10,751,743,325.44/119,120.99 - Step 6: Final answer
x = 90,259.02
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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.