Finding the Fourth Proportional to 116,463.12, 160,556.28 and 98,485.92
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Solution
The fourth proportional to 116,463.12, 160,556.28 and 98,485.92 is: 135,772.88
Step by Step Solution
- Step 1: Write the proportion equation
116,463.12 : 160,556.28 = 98,485.92 : x - Step 2: Convert to fraction form
116,463.12/160,556.28 = 98,485.92/x - Step 3: Cross multiply
116,463.12x = 160,556.28 × 98,485.92 - Step 4: Simplify right side
116,463.12x = 15,812,532,947.58 - Step 5: Solve for x
x = 15,812,532,947.58/116,463.12 - Step 6: Final answer
x = 135,772.88
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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.