Finding the Fourth Proportional to 163,687.99, 245,531.31 and 45,358.99
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Solution
The fourth proportional to 163,687.99, 245,531.31 and 45,358.99 is: 68,038.30
Step by Step Solution
- Step 1: Write the proportion equation
163,687.99 : 245,531.31 = 45,358.99 : x - Step 2: Convert to fraction form
163,687.99/245,531.31 = 45,358.99/x - Step 3: Cross multiply
163,687.99x = 245,531.31 × 45,358.99 - Step 4: Simplify right side
163,687.99x = 11,137,052,234.98 - Step 5: Solve for x
x = 11,137,052,234.98/163,687.99 - Step 6: Final answer
x = 68,038.30
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.