Finding the Fourth Proportional to 131,990.99, 182,297.91 and 89,475.71
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Solution
The fourth proportional to 131,990.99, 182,297.91 and 89,475.71 is: 123,578.39
Step by Step Solution
- Step 1: Write the proportion equation
131,990.99 : 182,297.91 = 89,475.71 : x - Step 2: Convert to fraction form
131,990.99/182,297.91 = 89,475.71/x - Step 3: Cross multiply
131,990.99x = 182,297.91 × 89,475.71 - Step 4: Simplify right side
131,990.99x = 16,311,234,017.28 - Step 5: Solve for x
x = 16,311,234,017.28/131,990.99 - Step 6: Final answer
x = 123,578.39
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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.