Finding the Fourth Proportional to 117,206.70, 161,746.02 and 63,491.72
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Solution
The fourth proportional to 117,206.70, 161,746.02 and 63,491.72 is: 87,618.99
Step by Step Solution
- Step 1: Write the proportion equation
117,206.70 : 161,746.02 = 63,491.72 : x - Step 2: Convert to fraction form
117,206.70/161,746.02 = 63,491.72/x - Step 3: Cross multiply
117,206.70x = 161,746.02 × 63,491.72 - Step 4: Simplify right side
117,206.70x = 10,269,532,204.22 - Step 5: Solve for x
x = 10,269,532,204.22/117,206.70 - Step 6: Final answer
x = 87,618.99
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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.