Finding the Fourth Proportional to 115,265.21, 159,053.09 and 69,954.21
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Solution
The fourth proportional to 115,265.21, 159,053.09 and 69,954.21 is: 96,528.98
Step by Step Solution
- Step 1: Write the proportion equation
115,265.21 : 159,053.09 = 69,954.21 : x - Step 2: Convert to fraction form
115,265.21/159,053.09 = 69,954.21/x - Step 3: Cross multiply
115,265.21x = 159,053.09 × 69,954.21 - Step 4: Simplify right side
115,265.21x = 11,126,432,909.24 - Step 5: Solve for x
x = 11,126,432,909.24/115,265.21 - Step 6: Final answer
x = 96,528.98
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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.