Finding the Fourth Proportional to 117,073.55, 161,561.70 and 63,358.61
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Solution
The fourth proportional to 117,073.55, 161,561.70 and 63,358.61 is: 87,434.99
Step by Step Solution
- Step 1: Write the proportion equation
117,073.55 : 161,561.70 = 63,358.61 : x - Step 2: Convert to fraction form
117,073.55/161,561.70 = 63,358.61/x - Step 3: Cross multiply
117,073.55x = 161,561.70 × 63,358.61 - Step 4: Simplify right side
117,073.55x = 10,236,324,741.24 - Step 5: Solve for x
x = 10,236,324,741.24/117,073.55 - Step 6: Final answer
x = 87,434.99
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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.