Finding the Fourth Proportional to 117,211.76, 161,752.05 and 63,496.99
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Solution
The fourth proportional to 117,211.76, 161,752.05 and 63,496.99 is: 87,625.75
Step by Step Solution
- Step 1: Write the proportion equation
117,211.76 : 161,752.05 = 63,496.99 : x - Step 2: Convert to fraction form
117,211.76/161,752.05 = 63,496.99/x - Step 3: Cross multiply
117,211.76x = 161,752.05 × 63,496.99 - Step 4: Simplify right side
117,211.76x = 10,270,767,492.57 - Step 5: Solve for x
x = 10,270,767,492.57/117,211.76 - Step 6: Final answer
x = 87,625.75
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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.