Finding the Fourth Proportional to 117,028.76, 161,499.62 and 63,313.79
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Solution
The fourth proportional to 117,028.76, 161,499.62 and 63,313.79 is: 87,372.99
Step by Step Solution
- Step 1: Write the proportion equation
117,028.76 : 161,499.62 = 63,313.79 : x - Step 2: Convert to fraction form
117,028.76/161,499.62 = 63,313.79/x - Step 3: Cross multiply
117,028.76x = 161,499.62 × 63,313.79 - Step 4: Simplify right side
117,028.76x = 10,225,152,709.19 - Step 5: Solve for x
x = 10,225,152,709.19/117,028.76 - Step 6: Final answer
x = 87,372.99
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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.