Finding the Fourth Proportional to 117,211.12, 161,750.70 and 63,497.19
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Solution
The fourth proportional to 117,211.12, 161,750.70 and 63,497.19 is: 87,625.77
Step by Step Solution
- Step 1: Write the proportion equation
117,211.12 : 161,750.70 = 63,497.19 : x - Step 2: Convert to fraction form
117,211.12/161,750.70 = 63,497.19/x - Step 3: Cross multiply
117,211.12x = 161,750.70 × 63,497.19 - Step 4: Simplify right side
117,211.12x = 10,270,714,805.84 - Step 5: Solve for x
x = 10,270,714,805.84/117,211.12 - Step 6: Final answer
x = 87,625.77
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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.