Finding the Fourth Proportional to 81,606.24, 122,168.79 and 79,594.20
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Solution
The fourth proportional to 81,606.24, 122,168.79 and 79,594.20 is: 119,156.66
Step by Step Solution
- Step 1: Write the proportion equation
81,606.24 : 122,168.79 = 79,594.20 : x - Step 2: Convert to fraction form
81,606.24/122,168.79 = 79,594.20/x - Step 3: Cross multiply
81,606.24x = 122,168.79 × 79,594.20 - Step 4: Simplify right side
81,606.24x = 9,723,927,105.02 - Step 5: Solve for x
x = 9,723,927,105.02/81,606.24 - Step 6: Final answer
x = 119,156.66
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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.