Finding the Fourth Proportional to 117,087.74, 161,584.99 and 71,756.96
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Solution
The fourth proportional to 117,087.74, 161,584.99 and 71,756.96 is: 99,027.00
Step by Step Solution
- Step 1: Write the proportion equation
117,087.74 : 161,584.99 = 71,756.96 : x - Step 2: Convert to fraction form
117,087.74/161,584.99 = 71,756.96/x - Step 3: Cross multiply
117,087.74x = 161,584.99 × 71,756.96 - Step 4: Simplify right side
117,087.74x = 11,594,847,282.66 - Step 5: Solve for x
x = 11,594,847,282.66/117,087.74 - Step 6: Final answer
x = 99,027.00
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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.