Finding the Fourth Proportional to 116,868.96, 161,279.16 and 63,154.08
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Solution
The fourth proportional to 116,868.96, 161,279.16 and 63,154.08 is: 87,152.63
Step by Step Solution
- Step 1: Write the proportion equation
116,868.96 : 161,279.16 = 63,154.08 : x - Step 2: Convert to fraction form
116,868.96/161,279.16 = 63,154.08/x - Step 3: Cross multiply
116,868.96x = 161,279.16 × 63,154.08 - Step 4: Simplify right side
116,868.96x = 10,185,436,972.97 - Step 5: Solve for x
x = 10,185,436,972.97/116,868.96 - Step 6: Final answer
x = 87,152.63
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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.