Finding the Fourth Proportional to 117,179.99, 161,707.88 and 65,497.01
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Solution
The fourth proportional to 117,179.99, 161,707.88 and 65,497.01 is: 90,385.59
Step by Step Solution
- Step 1: Write the proportion equation
117,179.99 : 161,707.88 = 65,497.01 : x - Step 2: Convert to fraction form
117,179.99/161,707.88 = 65,497.01/x - Step 3: Cross multiply
117,179.99x = 161,707.88 × 65,497.01 - Step 4: Simplify right side
117,179.99x = 10,591,382,633.44 - Step 5: Solve for x
x = 10,591,382,633.44/117,179.99 - Step 6: Final answer
x = 90,385.59
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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.