Finding the Fourth Proportional to 120,981.80, 181,509.63 and 61,858.99
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Solution
The fourth proportional to 120,981.80, 181,509.63 and 61,858.99 is: 92,807.37
Step by Step Solution
- Step 1: Write the proportion equation
120,981.80 : 181,509.63 = 61,858.99 : x - Step 2: Convert to fraction form
120,981.80/181,509.63 = 61,858.99/x - Step 3: Cross multiply
120,981.80x = 181,509.63 × 61,858.99 - Step 4: Simplify right side
120,981.80x = 11,228,002,381.99 - Step 5: Solve for x
x = 11,228,002,381.99/120,981.80 - Step 6: Final answer
x = 92,807.37
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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.