Finding the Fourth Proportional to 113,495.87, 156,456.25 and 72,653.99
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Solution
The fourth proportional to 113,495.87, 156,456.25 and 72,653.99 is: 100,154.92
Step by Step Solution
- Step 1: Write the proportion equation
113,495.87 : 156,456.25 = 72,653.99 : x - Step 2: Convert to fraction form
113,495.87/156,456.25 = 72,653.99/x - Step 3: Cross multiply
113,495.87x = 156,456.25 × 72,653.99 - Step 4: Simplify right side
113,495.87x = 11,367,169,859.02 - Step 5: Solve for x
x = 11,367,169,859.02/113,495.87 - Step 6: Final answer
x = 100,154.92
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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.