Finding the Fourth Proportional to 117,170.98, 161,696.16 and 63,455.84
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Solution
The fourth proportional to 117,170.98, 161,696.16 and 63,455.84 is: 87,569.17
Step by Step Solution
- Step 1: Write the proportion equation
117,170.98 : 161,696.16 = 63,455.84 : x - Step 2: Convert to fraction form
117,170.98/161,696.16 = 63,455.84/x - Step 3: Cross multiply
117,170.98x = 161,696.16 × 63,455.84 - Step 4: Simplify right side
117,170.98x = 10,260,565,657.57 - Step 5: Solve for x
x = 10,260,565,657.57/117,170.98 - Step 6: Final answer
x = 87,569.17
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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.