Finding the Fourth Proportional to 117,694.02, 162,431.36 and 69,946.96
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Solution
The fourth proportional to 117,694.02, 162,431.36 and 69,946.96 is: 96,534.89
Step by Step Solution
- Step 1: Write the proportion equation
117,694.02 : 162,431.36 = 69,946.96 : x - Step 2: Convert to fraction form
117,694.02/162,431.36 = 69,946.96/x - Step 3: Cross multiply
117,694.02x = 162,431.36 × 69,946.96 - Step 4: Simplify right side
117,694.02x = 11,361,579,840.67 - Step 5: Solve for x
x = 11,361,579,840.67/117,694.02 - Step 6: Final answer
x = 96,534.89
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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.